Home / 987,247.80-1,479,705.30-418,627.80

Finding the Fourth Proportional to 987,247.80, 1,479,705.30 and 418,627.80

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Solution

The fourth proportional to 987,247.80, 1,479,705.30 and 418,627.80 is: 627,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,247.80 : 1,479,705.30 = 418,627.80 : x
  2. Step 2: Convert to fraction form
    987,247.80/1,479,705.30 = 418,627.80/x
  3. Step 3: Cross multiply
    987,247.80x = 1,479,705.30 × 418,627.80
  4. Step 4: Simplify right side
    987,247.80x = 619,445,774,387.34
  5. Step 5: Solve for x
    x = 619,445,774,387.34/987,247.80
  6. Step 6: Final answer
    x = 627,447.11

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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.