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Finding the Fourth Proportional to 491,842.46, 681,837.89 and 464,901.39

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Solution

The fourth proportional to 491,842.46, 681,837.89 and 464,901.39 is: 644,489.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,842.46 : 681,837.89 = 464,901.39 : x
  2. Step 2: Convert to fraction form
    491,842.46/681,837.89 = 464,901.39/x
  3. Step 3: Cross multiply
    491,842.46x = 681,837.89 × 464,901.39
  4. Step 4: Simplify right side
    491,842.46x = 316,987,380,491.16
  5. Step 5: Solve for x
    x = 316,987,380,491.16/491,842.46
  6. Step 6: Final answer
    x = 644,489.66

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.