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Finding the Fourth Proportional to 617,163.68, 851,645.88 and 345,184.52

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Solution

The fourth proportional to 617,163.68, 851,645.88 and 345,184.52 is: 476,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,163.68 : 851,645.88 = 345,184.52 : x
  2. Step 2: Convert to fraction form
    617,163.68/851,645.88 = 345,184.52/x
  3. Step 3: Cross multiply
    617,163.68x = 851,645.88 × 345,184.52
  4. Step 4: Simplify right side
    617,163.68x = 293,974,970,039.55
  5. Step 5: Solve for x
    x = 293,974,970,039.55/617,163.68
  6. Step 6: Final answer
    x = 476,332.26

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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.