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Finding the Fourth Proportional to 662,691.60, 994,555.80 and 307,749.60

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Solution

The fourth proportional to 662,691.60, 994,555.80 and 307,749.60 is: 461,865.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,691.60 : 994,555.80 = 307,749.60 : x
  2. Step 2: Convert to fraction form
    662,691.60/994,555.80 = 307,749.60/x
  3. Step 3: Cross multiply
    662,691.60x = 994,555.80 × 307,749.60
  4. Step 4: Simplify right side
    662,691.60x = 306,074,149,627.68
  5. Step 5: Solve for x
    x = 306,074,149,627.68/662,691.60
  6. Step 6: Final answer
    x = 461,865.14

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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.