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Finding the Fourth Proportional to 713,607.46, 1,070,414.76 and 181,128.65

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Solution

The fourth proportional to 713,607.46, 1,070,414.76 and 181,128.65 is: 271,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,607.46 : 1,070,414.76 = 181,128.65 : x
  2. Step 2: Convert to fraction form
    713,607.46/1,070,414.76 = 181,128.65/x
  3. Step 3: Cross multiply
    713,607.46x = 1,070,414.76 × 181,128.65
  4. Step 4: Simplify right side
    713,607.46x = 193,882,780,418.87
  5. Step 5: Solve for x
    x = 193,882,780,418.87/713,607.46
  6. Step 6: Final answer
    x = 271,693.88

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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.