Home / 725,691.95-1,088,541.40-220,257.31

Finding the Fourth Proportional to 725,691.95, 1,088,541.40 and 220,257.31

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Solution

The fourth proportional to 725,691.95, 1,088,541.40 and 220,257.31 is: 330,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,691.95 : 1,088,541.40 = 220,257.31 : x
  2. Step 2: Convert to fraction form
    725,691.95/1,088,541.40 = 220,257.31/x
  3. Step 3: Cross multiply
    725,691.95x = 1,088,541.40 × 220,257.31
  4. Step 4: Simplify right side
    725,691.95x = 239,759,199,486.35
  5. Step 5: Solve for x
    x = 239,759,199,486.35/725,691.95
  6. Step 6: Final answer
    x = 330,387.02

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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.