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Finding the Fourth Proportional to 485,760.62, 727,124.63 and 357,821.13

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Solution

The fourth proportional to 485,760.62, 727,124.63 and 357,821.13 is: 535,614.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,760.62 : 727,124.63 = 357,821.13 : x
  2. Step 2: Convert to fraction form
    485,760.62/727,124.63 = 357,821.13/x
  3. Step 3: Cross multiply
    485,760.62x = 727,124.63 × 357,821.13
  4. Step 4: Simplify right side
    485,760.62x = 260,180,556,757.43
  5. Step 5: Solve for x
    x = 260,180,556,757.43/485,760.62
  6. Step 6: Final answer
    x = 535,614.76

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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.