Home / 626,857.01-865,072.88-340,377.78

Finding the Fourth Proportional to 626,857.01, 865,072.88 and 340,377.78

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Solution

The fourth proportional to 626,857.01, 865,072.88 and 340,377.78 is: 469,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,857.01 : 865,072.88 = 340,377.78 : x
  2. Step 2: Convert to fraction form
    626,857.01/865,072.88 = 340,377.78/x
  3. Step 3: Cross multiply
    626,857.01x = 865,072.88 × 340,377.78
  4. Step 4: Simplify right side
    626,857.01x = 294,451,586,432.61
  5. Step 5: Solve for x
    x = 294,451,586,432.61/626,857.01
  6. Step 6: Final answer
    x = 469,726.88

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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.