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Finding the Fourth Proportional to 616,964.66, 851,454.62 and 345,057.86

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Solution

The fourth proportional to 616,964.66, 851,454.62 and 345,057.86 is: 476,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,964.66 : 851,454.62 = 345,057.86 : x
  2. Step 2: Convert to fraction form
    616,964.66/851,454.62 = 345,057.86/x
  3. Step 3: Cross multiply
    616,964.66x = 851,454.62 × 345,057.86
  4. Step 4: Simplify right side
    616,964.66x = 293,801,103,081.75
  5. Step 5: Solve for x
    x = 293,801,103,081.75/616,964.66
  6. Step 6: Final answer
    x = 476,204.11

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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.