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Finding the Fourth Proportional to 552,468.57, 762,401.10 and 307,449.19

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Solution

The fourth proportional to 552,468.57, 762,401.10 and 307,449.19 is: 424,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,468.57 : 762,401.10 = 307,449.19 : x
  2. Step 2: Convert to fraction form
    552,468.57/762,401.10 = 307,449.19/x
  3. Step 3: Cross multiply
    552,468.57x = 762,401.10 × 307,449.19
  4. Step 4: Simplify right side
    552,468.57x = 234,399,600,650.11
  5. Step 5: Solve for x
    x = 234,399,600,650.11/552,468.57
  6. Step 6: Final answer
    x = 424,276.81

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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.