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Finding the Fourth Proportional to 636,044.98, 877,216.32 and 431,760.14

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Solution

The fourth proportional to 636,044.98, 877,216.32 and 431,760.14 is: 595,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,044.98 : 877,216.32 = 431,760.14 : x
  2. Step 2: Convert to fraction form
    636,044.98/877,216.32 = 431,760.14/x
  3. Step 3: Cross multiply
    636,044.98x = 877,216.32 × 431,760.14
  4. Step 4: Simplify right side
    636,044.98x = 378,747,041,133.49
  5. Step 5: Solve for x
    x = 378,747,041,133.49/636,044.98
  6. Step 6: Final answer
    x = 595,472.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.