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Finding the Fourth Proportional to 617,877.75, 852,684.27 and 349,605.75

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Solution

The fourth proportional to 617,877.75, 852,684.27 and 349,605.75 is: 482,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,877.75 : 852,684.27 = 349,605.75 : x
  2. Step 2: Convert to fraction form
    617,877.75/852,684.27 = 349,605.75/x
  3. Step 3: Cross multiply
    617,877.75x = 852,684.27 × 349,605.75
  4. Step 4: Simplify right side
    617,877.75x = 298,103,323,726.55
  5. Step 5: Solve for x
    x = 298,103,323,726.55/617,877.75
  6. Step 6: Final answer
    x = 482,463.28

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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.