Home / 747,200.09-1,031,130.86-424,910.10

Finding the Fourth Proportional to 747,200.09, 1,031,130.86 and 424,910.10

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Solution

The fourth proportional to 747,200.09, 1,031,130.86 and 424,910.10 is: 586,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,200.09 : 1,031,130.86 = 424,910.10 : x
  2. Step 2: Convert to fraction form
    747,200.09/1,031,130.86 = 424,910.10/x
  3. Step 3: Cross multiply
    747,200.09x = 1,031,130.86 × 424,910.10
  4. Step 4: Simplify right side
    747,200.09x = 438,137,914,711.14
  5. Step 5: Solve for x
    x = 438,137,914,711.14/747,200.09
  6. Step 6: Final answer
    x = 586,372.95

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.