Home / 698,781.60-1,047,265.20-324,007.20

Finding the Fourth Proportional to 698,781.60, 1,047,265.20 and 324,007.20

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Solution

The fourth proportional to 698,781.60, 1,047,265.20 and 324,007.20 is: 485,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,781.60 : 1,047,265.20 = 324,007.20 : x
  2. Step 2: Convert to fraction form
    698,781.60/1,047,265.20 = 324,007.20/x
  3. Step 3: Cross multiply
    698,781.60x = 1,047,265.20 × 324,007.20
  4. Step 4: Simplify right side
    698,781.60x = 339,321,465,109.44
  5. Step 5: Solve for x
    x = 339,321,465,109.44/698,781.60
  6. Step 6: Final answer
    x = 485,590.15

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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.