Home / 783,747.25-1,178,278.38-625,840.39

Finding the Fourth Proportional to 783,747.25, 1,178,278.38 and 625,840.39

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Solution

The fourth proportional to 783,747.25, 1,178,278.38 and 625,840.39 is: 940,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,747.25 : 1,178,278.38 = 625,840.39 : x
  2. Step 2: Convert to fraction form
    783,747.25/1,178,278.38 = 625,840.39/x
  3. Step 3: Cross multiply
    783,747.25x = 1,178,278.38 × 625,840.39
  4. Step 4: Simplify right side
    783,747.25x = 737,414,200,867.77
  5. Step 5: Solve for x
    x = 737,414,200,867.77/783,747.25
  6. Step 6: Final answer
    x = 940,882.66

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1.5x scale

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.