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Finding the Fourth Proportional to 610,469.70, 915,704.55 and 545,151.30

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Solution

The fourth proportional to 610,469.70, 915,704.55 and 545,151.30 is: 817,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,469.70 : 915,704.55 = 545,151.30 : x
  2. Step 2: Convert to fraction form
    610,469.70/915,704.55 = 545,151.30/x
  3. Step 3: Cross multiply
    610,469.70x = 915,704.55 × 545,151.30
  4. Step 4: Simplify right side
    610,469.70x = 499,197,525,848.42
  5. Step 5: Solve for x
    x = 499,197,525,848.42/610,469.70
  6. Step 6: Final answer
    x = 817,726.95

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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.