Home / 987,246.30-1,479,703.05-418,626.30

Finding the Fourth Proportional to 987,246.30, 1,479,703.05 and 418,626.30

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Solution

The fourth proportional to 987,246.30, 1,479,703.05 and 418,626.30 is: 627,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,246.30 : 1,479,703.05 = 418,626.30 : x
  2. Step 2: Convert to fraction form
    987,246.30/1,479,703.05 = 418,626.30/x
  3. Step 3: Cross multiply
    987,246.30x = 1,479,703.05 × 418,626.30
  4. Step 4: Simplify right side
    987,246.30x = 619,442,612,920.22
  5. Step 5: Solve for x
    x = 619,442,612,920.22/987,246.30
  6. Step 6: Final answer
    x = 627,444.86

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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.