Home / 727,902.80-1,091,854.20-664,917.20

Finding the Fourth Proportional to 727,902.80, 1,091,854.20 and 664,917.20

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Solution

The fourth proportional to 727,902.80, 1,091,854.20 and 664,917.20 is: 997,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,902.80 : 1,091,854.20 = 664,917.20 : x
  2. Step 2: Convert to fraction form
    727,902.80/1,091,854.20 = 664,917.20/x
  3. Step 3: Cross multiply
    727,902.80x = 1,091,854.20 × 664,917.20
  4. Step 4: Simplify right side
    727,902.80x = 725,992,637,472.24
  5. Step 5: Solve for x
    x = 725,992,637,472.24/727,902.80
  6. Step 6: Final answer
    x = 997,375.80

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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.