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Finding the Fourth Proportional to 608,761.71, 913,351.88 and 272,034.79

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Solution

The fourth proportional to 608,761.71, 913,351.88 and 272,034.79 is: 408,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,761.71 : 913,351.88 = 272,034.79 : x
  2. Step 2: Convert to fraction form
    608,761.71/913,351.88 = 272,034.79/x
  3. Step 3: Cross multiply
    608,761.71x = 913,351.88 × 272,034.79
  4. Step 4: Simplify right side
    608,761.71x = 248,463,485,268.61
  5. Step 5: Solve for x
    x = 248,463,485,268.61/608,761.71
  6. Step 6: Final answer
    x = 408,145.72

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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.