Home / 865,787.12-1,194,768.56-478,618.88

Finding the Fourth Proportional to 865,787.12, 1,194,768.56 and 478,618.88

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Solution

The fourth proportional to 865,787.12, 1,194,768.56 and 478,618.88 is: 660,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,787.12 : 1,194,768.56 = 478,618.88 : x
  2. Step 2: Convert to fraction form
    865,787.12/1,194,768.56 = 478,618.88/x
  3. Step 3: Cross multiply
    865,787.12x = 1,194,768.56 × 478,618.88
  4. Step 4: Simplify right side
    865,787.12x = 571,838,790,046.41
  5. Step 5: Solve for x
    x = 571,838,790,046.41/865,787.12
  6. Step 6: Final answer
    x = 660,484.29

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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.