Home / 1,170,086.70-1,755,130.05-981,129.90

Finding the Fourth Proportional to 1,170,086.70, 1,755,130.05 and 981,129.90

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Solution

The fourth proportional to 1,170,086.70, 1,755,130.05 and 981,129.90 is: 1,471,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,086.70 : 1,755,130.05 = 981,129.90 : x
  2. Step 2: Convert to fraction form
    1,170,086.70/1,755,130.05 = 981,129.90/x
  3. Step 3: Cross multiply
    1,170,086.70x = 1,755,130.05 × 981,129.90
  4. Step 4: Simplify right side
    1,170,086.70x = 1,722,010,570,443.50
  5. Step 5: Solve for x
    x = 1,722,010,570,443.50/1,170,086.70
  6. Step 6: Final answer
    x = 1,471,694.85

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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.