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Finding the Fourth Proportional to 721,449.28, 995,420.82 and 466,493.68

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Solution

The fourth proportional to 721,449.28, 995,420.82 and 466,493.68 is: 643,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,449.28 : 995,420.82 = 466,493.68 : x
  2. Step 2: Convert to fraction form
    721,449.28/995,420.82 = 466,493.68/x
  3. Step 3: Cross multiply
    721,449.28x = 995,420.82 × 466,493.68
  4. Step 4: Simplify right side
    721,449.28x = 464,357,521,470.42
  5. Step 5: Solve for x
    x = 464,357,521,470.42/721,449.28
  6. Step 6: Final answer
    x = 643,645.42

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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.