Home / 729,791.72-1,007,808.18-690,032.60

Finding the Fourth Proportional to 729,791.72, 1,007,808.18 and 690,032.60

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Solution

The fourth proportional to 729,791.72, 1,007,808.18 and 690,032.60 is: 952,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,791.72 : 1,007,808.18 = 690,032.60 : x
  2. Step 2: Convert to fraction form
    729,791.72/1,007,808.18 = 690,032.60/x
  3. Step 3: Cross multiply
    729,791.72x = 1,007,808.18 × 690,032.60
  4. Step 4: Simplify right side
    729,791.72x = 695,420,498,746.67
  5. Step 5: Solve for x
    x = 695,420,498,746.67/729,791.72
  6. Step 6: Final answer
    x = 952,902.70

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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.