Home / 1,170,090.70-1,755,136.05-981,133.90

Finding the Fourth Proportional to 1,170,090.70, 1,755,136.05 and 981,133.90

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Solution

The fourth proportional to 1,170,090.70, 1,755,136.05 and 981,133.90 is: 1,471,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,090.70 : 1,755,136.05 = 981,133.90 : x
  2. Step 2: Convert to fraction form
    1,170,090.70/1,755,136.05 = 981,133.90/x
  3. Step 3: Cross multiply
    1,170,090.70x = 1,755,136.05 × 981,133.90
  4. Step 4: Simplify right side
    1,170,090.70x = 1,722,023,477,767.10
  5. Step 5: Solve for x
    x = 1,722,023,477,767.10/1,170,090.70
  6. Step 6: Final answer
    x = 1,471,700.85

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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.