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Finding the Fourth Proportional to 721,649.53, 995,892.60 and 467,443.18

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Solution

The fourth proportional to 721,649.53, 995,892.60 and 467,443.18 is: 645,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,649.53 : 995,892.60 = 467,443.18 : x
  2. Step 2: Convert to fraction form
    721,649.53/995,892.60 = 467,443.18/x
  3. Step 3: Cross multiply
    721,649.53x = 995,892.60 × 467,443.18
  4. Step 4: Simplify right side
    721,649.53x = 465,523,203,882.47
  5. Step 5: Solve for x
    x = 465,523,203,882.47/721,649.53
  6. Step 6: Final answer
    x = 645,082.11

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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.