Home / 781,010.08-1,170,177.60-426,273.04

Finding the Fourth Proportional to 781,010.08, 1,170,177.60 and 426,273.04

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Solution

The fourth proportional to 781,010.08, 1,170,177.60 and 426,273.04 is: 638,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,010.08 : 1,170,177.60 = 426,273.04 : x
  2. Step 2: Convert to fraction form
    781,010.08/1,170,177.60 = 426,273.04/x
  3. Step 3: Cross multiply
    781,010.08x = 1,170,177.60 × 426,273.04
  4. Step 4: Simplify right side
    781,010.08x = 498,815,162,891.90
  5. Step 5: Solve for x
    x = 498,815,162,891.90/781,010.08
  6. Step 6: Final answer
    x = 638,679.55

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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.