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Finding the Fourth Proportional to 485,134.60, 727,701.90 and 482,024.20

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Solution

The fourth proportional to 485,134.60, 727,701.90 and 482,024.20 is: 723,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,134.60 : 727,701.90 = 482,024.20 : x
  2. Step 2: Convert to fraction form
    485,134.60/727,701.90 = 482,024.20/x
  3. Step 3: Cross multiply
    485,134.60x = 727,701.90 × 482,024.20
  4. Step 4: Simplify right side
    485,134.60x = 350,769,926,185.98
  5. Step 5: Solve for x
    x = 350,769,926,185.98/485,134.60
  6. Step 6: Final answer
    x = 723,036.30

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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.