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Finding the Fourth Proportional to 423,671.27, 635,312.88 and 252,970.47

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Solution

The fourth proportional to 423,671.27, 635,312.88 and 252,970.47 is: 379,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,671.27 : 635,312.88 = 252,970.47 : x
  2. Step 2: Convert to fraction form
    423,671.27/635,312.88 = 252,970.47/x
  3. Step 3: Cross multiply
    423,671.27x = 635,312.88 × 252,970.47
  4. Step 4: Simplify right side
    423,671.27x = 160,715,397,850.65
  5. Step 5: Solve for x
    x = 160,715,397,850.65/423,671.27
  6. Step 6: Final answer
    x = 379,339.86

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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.