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Finding the Fourth Proportional to 653,691.64, 980,284.74 and 254,278.48

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Solution

The fourth proportional to 653,691.64, 980,284.74 and 254,278.48 is: 381,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,691.64 : 980,284.74 = 254,278.48 : x
  2. Step 2: Convert to fraction form
    653,691.64/980,284.74 = 254,278.48/x
  3. Step 3: Cross multiply
    653,691.64x = 980,284.74 × 254,278.48
  4. Step 4: Simplify right side
    653,691.64x = 249,265,313,654.40
  5. Step 5: Solve for x
    x = 249,265,313,654.40/653,691.64
  6. Step 6: Final answer
    x = 381,319.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.