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Finding the Fourth Proportional to 866,657.52, 1,300,439.62 and 354,702.68

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Solution

The fourth proportional to 866,657.52, 1,300,439.62 and 354,702.68 is: 532,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,657.52 : 1,300,439.62 = 354,702.68 : x
  2. Step 2: Convert to fraction form
    866,657.52/1,300,439.62 = 354,702.68/x
  3. Step 3: Cross multiply
    866,657.52x = 1,300,439.62 × 354,702.68
  4. Step 4: Simplify right side
    866,657.52x = 461,269,418,392.18
  5. Step 5: Solve for x
    x = 461,269,418,392.18/866,657.52
  6. Step 6: Final answer
    x = 532,239.56

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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.