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Finding the Fourth Proportional to 636,151.34, 877,889.51 and 349,665.28

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Solution

The fourth proportional to 636,151.34, 877,889.51 and 349,665.28 is: 482,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,151.34 : 877,889.51 = 349,665.28 : x
  2. Step 2: Convert to fraction form
    636,151.34/877,889.51 = 349,665.28/x
  3. Step 3: Cross multiply
    636,151.34x = 877,889.51 × 349,665.28
  4. Step 4: Simplify right side
    636,151.34x = 306,967,478,691.41
  5. Step 5: Solve for x
    x = 306,967,478,691.41/636,151.34
  6. Step 6: Final answer
    x = 482,538.44

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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.