Home / 728,815.23-1,092,195.09-344,153.61

Finding the Fourth Proportional to 728,815.23, 1,092,195.09 and 344,153.61

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Solution

The fourth proportional to 728,815.23, 1,092,195.09 and 344,153.61 is: 515,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,815.23 : 1,092,195.09 = 344,153.61 : x
  2. Step 2: Convert to fraction form
    728,815.23/1,092,195.09 = 344,153.61/x
  3. Step 3: Cross multiply
    728,815.23x = 1,092,195.09 × 344,153.61
  4. Step 4: Simplify right side
    728,815.23x = 375,882,883,047.78
  5. Step 5: Solve for x
    x = 375,882,883,047.78/728,815.23
  6. Step 6: Final answer
    x = 515,745.10

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1.5x scale

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.