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Finding the Fourth Proportional to 524,614.70, 787,116.45 and 169,640.30

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Solution

The fourth proportional to 524,614.70, 787,116.45 and 169,640.30 is: 254,523.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,614.70 : 787,116.45 = 169,640.30 : x
  2. Step 2: Convert to fraction form
    524,614.70/787,116.45 = 169,640.30/x
  3. Step 3: Cross multiply
    524,614.70x = 787,116.45 × 169,640.30
  4. Step 4: Simplify right side
    524,614.70x = 133,526,670,712.94
  5. Step 5: Solve for x
    x = 133,526,670,712.94/524,614.70
  6. Step 6: Final answer
    x = 254,523.31

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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.