Home / 987,195.39-1,480,498.44-418,566.88

Finding the Fourth Proportional to 987,195.39, 1,480,498.44 and 418,566.88

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Solution

The fourth proportional to 987,195.39, 1,480,498.44 and 418,566.88 is: 627,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,195.39 : 1,480,498.44 = 418,566.88 : x
  2. Step 2: Convert to fraction form
    987,195.39/1,480,498.44 = 418,566.88/x
  3. Step 3: Cross multiply
    987,195.39x = 1,480,498.44 × 418,566.88
  4. Step 4: Simplify right side
    987,195.39x = 619,687,612,875.67
  5. Step 5: Solve for x
    x = 619,687,612,875.67/987,195.39
  6. Step 6: Final answer
    x = 627,725.39

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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.