Home / 827,555.40-1,241,333.10-491,632.20

Finding the Fourth Proportional to 827,555.40, 1,241,333.10 and 491,632.20

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Solution

The fourth proportional to 827,555.40, 1,241,333.10 and 491,632.20 is: 737,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,555.40 : 1,241,333.10 = 491,632.20 : x
  2. Step 2: Convert to fraction form
    827,555.40/1,241,333.10 = 491,632.20/x
  3. Step 3: Cross multiply
    827,555.40x = 1,241,333.10 × 491,632.20
  4. Step 4: Simplify right side
    827,555.40x = 610,279,322,885.82
  5. Step 5: Solve for x
    x = 610,279,322,885.82/827,555.40
  6. Step 6: Final answer
    x = 737,448.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.