Home / 981,331.80-1,471,997.70-972,000.60

Finding the Fourth Proportional to 981,331.80, 1,471,997.70 and 972,000.60

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Solution

The fourth proportional to 981,331.80, 1,471,997.70 and 972,000.60 is: 1,458,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,331.80 : 1,471,997.70 = 972,000.60 : x
  2. Step 2: Convert to fraction form
    981,331.80/1,471,997.70 = 972,000.60/x
  3. Step 3: Cross multiply
    981,331.80x = 1,471,997.70 × 972,000.60
  4. Step 4: Simplify right side
    981,331.80x = 1,430,782,647,598.62
  5. Step 5: Solve for x
    x = 1,430,782,647,598.62/981,331.80
  6. Step 6: Final answer
    x = 1,458,000.90

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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.