Home / 987,279.32-1,480,625.55-418,652.03

Finding the Fourth Proportional to 987,279.32, 1,480,625.55 and 418,652.03

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Solution

The fourth proportional to 987,279.32, 1,480,625.55 and 418,652.03 is: 627,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,279.32 : 1,480,625.55 = 418,652.03 : x
  2. Step 2: Convert to fraction form
    987,279.32/1,480,625.55 = 418,652.03/x
  3. Step 3: Cross multiply
    987,279.32x = 1,480,625.55 × 418,652.03
  4. Step 4: Simplify right side
    987,279.32x = 619,866,884,774.24
  5. Step 5: Solve for x
    x = 619,866,884,774.24/987,279.32
  6. Step 6: Final answer
    x = 627,853.61

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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.