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Finding the Fourth Proportional to 485,655.30, 727,316.55 and 464,660.10

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Solution

The fourth proportional to 485,655.30, 727,316.55 and 464,660.10 is: 695,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,655.30 : 727,316.55 = 464,660.10 : x
  2. Step 2: Convert to fraction form
    485,655.30/727,316.55 = 464,660.10/x
  3. Step 3: Cross multiply
    485,655.30x = 727,316.55 × 464,660.10
  4. Step 4: Simplify right side
    485,655.30x = 337,954,980,854.66
  5. Step 5: Solve for x
    x = 337,954,980,854.66/485,655.30
  6. Step 6: Final answer
    x = 695,874.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.