Home / 728,119.72-1,092,671.43-254,809.18

Finding the Fourth Proportional to 728,119.72, 1,092,671.43 and 254,809.18

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Solution

The fourth proportional to 728,119.72, 1,092,671.43 and 254,809.18 is: 382,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,119.72 : 1,092,671.43 = 254,809.18 : x
  2. Step 2: Convert to fraction form
    728,119.72/1,092,671.43 = 254,809.18/x
  3. Step 3: Cross multiply
    728,119.72x = 1,092,671.43 × 254,809.18
  4. Step 4: Simplify right side
    728,119.72x = 278,422,711,087.73
  5. Step 5: Solve for x
    x = 278,422,711,087.73/728,119.72
  6. Step 6: Final answer
    x = 382,385.90

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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.