Home / 810,147.60-1,215,221.40-277,673.85

Finding the Fourth Proportional to 810,147.60, 1,215,221.40 and 277,673.85

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Solution

The fourth proportional to 810,147.60, 1,215,221.40 and 277,673.85 is: 416,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,147.60 : 1,215,221.40 = 277,673.85 : x
  2. Step 2: Convert to fraction form
    810,147.60/1,215,221.40 = 277,673.85/x
  3. Step 3: Cross multiply
    810,147.60x = 1,215,221.40 × 277,673.85
  4. Step 4: Simplify right side
    810,147.60x = 337,435,204,740.39
  5. Step 5: Solve for x
    x = 337,435,204,740.39/810,147.60
  6. Step 6: Final answer
    x = 416,510.78

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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.