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Finding the Fourth Proportional to 636,221.88, 877,997.10 and 349,754.04

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Solution

The fourth proportional to 636,221.88, 877,997.10 and 349,754.04 is: 482,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,221.88 : 877,997.10 = 349,754.04 : x
  2. Step 2: Convert to fraction form
    636,221.88/877,997.10 = 349,754.04/x
  3. Step 3: Cross multiply
    636,221.88x = 877,997.10 × 349,754.04
  4. Step 4: Simplify right side
    636,221.88x = 307,083,032,833.28
  5. Step 5: Solve for x
    x = 307,083,032,833.28/636,221.88
  6. Step 6: Final answer
    x = 482,666.57

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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.