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Finding the Fourth Proportional to 636,087.22, 877,805.85 and 349,613.98

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Solution

The fourth proportional to 636,087.22, 877,805.85 and 349,613.98 is: 482,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,087.22 : 877,805.85 = 349,613.98 : x
  2. Step 2: Convert to fraction form
    636,087.22/877,805.85 = 349,613.98/x
  3. Step 3: Cross multiply
    636,087.22x = 877,805.85 × 349,613.98
  4. Step 4: Simplify right side
    636,087.22x = 306,893,196,885.78
  5. Step 5: Solve for x
    x = 306,893,196,885.78/636,087.22
  6. Step 6: Final answer
    x = 482,470.31

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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.