Home / 790,956.31-1,091,519.31-428,380.15

Finding the Fourth Proportional to 790,956.31, 1,091,519.31 and 428,380.15

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Solution

The fourth proportional to 790,956.31, 1,091,519.31 and 428,380.15 is: 591,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,956.31 : 1,091,519.31 = 428,380.15 : x
  2. Step 2: Convert to fraction form
    790,956.31/1,091,519.31 = 428,380.15/x
  3. Step 3: Cross multiply
    790,956.31x = 1,091,519.31 × 428,380.15
  4. Step 4: Simplify right side
    790,956.31x = 467,585,205,745.70
  5. Step 5: Solve for x
    x = 467,585,205,745.70/790,956.31
  6. Step 6: Final answer
    x = 591,164.39

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1.5x scale

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.