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Finding the Fourth Proportional to 609,527.90, 913,963.80 and 254,140.40

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Solution

The fourth proportional to 609,527.90, 913,963.80 and 254,140.40 is: 381,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,527.90 : 913,963.80 = 254,140.40 : x
  2. Step 2: Convert to fraction form
    609,527.90/913,963.80 = 254,140.40/x
  3. Step 3: Cross multiply
    609,527.90x = 913,963.80 × 254,140.40
  4. Step 4: Simplify right side
    609,527.90x = 232,275,125,717.52
  5. Step 5: Solve for x
    x = 232,275,125,717.52/609,527.90
  6. Step 6: Final answer
    x = 381,073.82

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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.