Home / 790,951.79-1,091,508.05-428,367.38

Finding the Fourth Proportional to 790,951.79, 1,091,508.05 and 428,367.38

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Solution

The fourth proportional to 790,951.79, 1,091,508.05 and 428,367.38 is: 591,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,951.79 : 1,091,508.05 = 428,367.38 : x
  2. Step 2: Convert to fraction form
    790,951.79/1,091,508.05 = 428,367.38/x
  3. Step 3: Cross multiply
    790,951.79x = 1,091,508.05 × 428,367.38
  4. Step 4: Simplify right side
    790,951.79x = 467,566,439,240.79
  5. Step 5: Solve for x
    x = 467,566,439,240.79/790,951.79
  6. Step 6: Final answer
    x = 591,144.04

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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.