Home / 899,412.74-1,241,192.82-491,520.84

Finding the Fourth Proportional to 899,412.74, 1,241,192.82 and 491,520.84

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Solution

The fourth proportional to 899,412.74, 1,241,192.82 and 491,520.84 is: 678,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,412.74 : 1,241,192.82 = 491,520.84 : x
  2. Step 2: Convert to fraction form
    899,412.74/1,241,192.82 = 491,520.84/x
  3. Step 3: Cross multiply
    899,412.74x = 1,241,192.82 × 491,520.84
  4. Step 4: Simplify right side
    899,412.74x = 610,072,137,488.37
  5. Step 5: Solve for x
    x = 610,072,137,488.37/899,412.74
  6. Step 6: Final answer
    x = 678,300.53

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Double scale
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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.