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Finding the Fourth Proportional to 653,939.60, 980,180.40 and 254,447.60

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Solution

The fourth proportional to 653,939.60, 980,180.40 and 254,447.60 is: 381,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,939.60 : 980,180.40 = 254,447.60 : x
  2. Step 2: Convert to fraction form
    653,939.60/980,180.40 = 254,447.60/x
  3. Step 3: Cross multiply
    653,939.60x = 980,180.40 × 254,447.60
  4. Step 4: Simplify right side
    653,939.60x = 249,404,550,347.04
  5. Step 5: Solve for x
    x = 249,404,550,347.04/653,939.60
  6. Step 6: Final answer
    x = 381,387.75

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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.