Home / 650,432.28-975,648.40-428,764.44

Finding the Fourth Proportional to 650,432.28, 975,648.40 and 428,764.44

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Solution

The fourth proportional to 650,432.28, 975,648.40 and 428,764.44 is: 643,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,432.28 : 975,648.40 = 428,764.44 : x
  2. Step 2: Convert to fraction form
    650,432.28/975,648.40 = 428,764.44/x
  3. Step 3: Cross multiply
    650,432.28x = 975,648.40 × 428,764.44
  4. Step 4: Simplify right side
    650,432.28x = 418,323,339,862.90
  5. Step 5: Solve for x
    x = 418,323,339,862.90/650,432.28
  6. Step 6: Final answer
    x = 643,146.65

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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.