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Finding the Fourth Proportional to 617,158.65, 851,335.88 and 359,006.55

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Solution

The fourth proportional to 617,158.65, 851,335.88 and 359,006.55 is: 495,229.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,158.65 : 851,335.88 = 359,006.55 : x
  2. Step 2: Convert to fraction form
    617,158.65/851,335.88 = 359,006.55/x
  3. Step 3: Cross multiply
    617,158.65x = 851,335.88 × 359,006.55
  4. Step 4: Simplify right side
    617,158.65x = 305,635,155,374.98
  5. Step 5: Solve for x
    x = 305,635,155,374.98/617,158.65
  6. Step 6: Final answer
    x = 495,229.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.