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Finding the Fourth Proportional to 636,060.12, 877,725.88 and 349,580.44

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Solution

The fourth proportional to 636,060.12, 877,725.88 and 349,580.44 is: 482,400.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,060.12 : 877,725.88 = 349,580.44 : x
  2. Step 2: Convert to fraction form
    636,060.12/877,725.88 = 349,580.44/x
  3. Step 3: Cross multiply
    636,060.12x = 877,725.88 × 349,580.44
  4. Step 4: Simplify right side
    636,060.12x = 306,835,799,329.79
  5. Step 5: Solve for x
    x = 306,835,799,329.79/636,060.12
  6. Step 6: Final answer
    x = 482,400.62

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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.