Home / 894,843.69-1,234,884.50-492,435.69

Finding the Fourth Proportional to 894,843.69, 1,234,884.50 and 492,435.69

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Solution

The fourth proportional to 894,843.69, 1,234,884.50 and 492,435.69 is: 679,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,843.69 : 1,234,884.50 = 492,435.69 : x
  2. Step 2: Convert to fraction form
    894,843.69/1,234,884.50 = 492,435.69/x
  3. Step 3: Cross multiply
    894,843.69x = 1,234,884.50 × 492,435.69
  4. Step 4: Simplify right side
    894,843.69x = 608,101,198,365.63
  5. Step 5: Solve for x
    x = 608,101,198,365.63/894,843.69
  6. Step 6: Final answer
    x = 679,561.36

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Half scale
Find fourth proportional to 1,789,687.38, 2,469,768.99 and 984,871.38
Double scale
Find fourth proportional to 894,844.69, 1,234,885.88 and 492,436.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.