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Finding the Fourth Proportional to 617,163.56, 851,645.71 and 345,184.39

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Solution

The fourth proportional to 617,163.56, 851,645.71 and 345,184.39 is: 476,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,163.56 : 851,645.71 = 345,184.39 : x
  2. Step 2: Convert to fraction form
    617,163.56/851,645.71 = 345,184.39/x
  3. Step 3: Cross multiply
    617,163.56x = 851,645.71 × 345,184.39
  4. Step 4: Simplify right side
    617,163.56x = 293,974,804,902.47
  5. Step 5: Solve for x
    x = 293,974,804,902.47/617,163.56
  6. Step 6: Final answer
    x = 476,332.08

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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.