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Finding the Fourth Proportional to 617,815.26, 852,331.68 and 375,903.90

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Solution

The fourth proportional to 617,815.26, 852,331.68 and 375,903.90 is: 518,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,815.26 : 852,331.68 = 375,903.90 : x
  2. Step 2: Convert to fraction form
    617,815.26/852,331.68 = 375,903.90/x
  3. Step 3: Cross multiply
    617,815.26x = 852,331.68 × 375,903.90
  4. Step 4: Simplify right side
    617,815.26x = 320,394,802,605.55
  5. Step 5: Solve for x
    x = 320,394,802,605.55/617,815.26
  6. Step 6: Final answer
    x = 518,593.22

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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.