Home / 790,951.30-1,091,512.42-428,375.14

Finding the Fourth Proportional to 790,951.30, 1,091,512.42 and 428,375.14

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Solution

The fourth proportional to 790,951.30, 1,091,512.42 and 428,375.14 is: 591,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,951.30 : 1,091,512.42 = 428,375.14 : x
  2. Step 2: Convert to fraction form
    790,951.30/1,091,512.42 = 428,375.14/x
  3. Step 3: Cross multiply
    790,951.30x = 1,091,512.42 × 428,375.14
  4. Step 4: Simplify right side
    790,951.30x = 467,576,781,929.52
  5. Step 5: Solve for x
    x = 467,576,781,929.52/790,951.30
  6. Step 6: Final answer
    x = 591,157.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.