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Finding the Fourth Proportional to 559,118, 838,683.48 and 138,397.52

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Solution

The fourth proportional to 559,118, 838,683.48 and 138,397.52 is: 207,597.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,118 : 838,683.48 = 138,397.52 : x
  2. Step 2: Convert to fraction form
    559,118/838,683.48 = 138,397.52/x
  3. Step 3: Cross multiply
    559,118x = 838,683.48 × 138,397.52
  4. Step 4: Simplify right side
    559,118x = 116,071,713,696.97
  5. Step 5: Solve for x
    x = 116,071,713,696.97/559,118
  6. Step 6: Final answer
    x = 207,597.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.