Home / 1,320,964.20-1,981,251.90-374,430.60

Finding the Fourth Proportional to 1,320,964.20, 1,981,251.90 and 374,430.60

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Solution

The fourth proportional to 1,320,964.20, 1,981,251.90 and 374,430.60 is: 561,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,964.20 : 1,981,251.90 = 374,430.60 : x
  2. Step 2: Convert to fraction form
    1,320,964.20/1,981,251.90 = 374,430.60/x
  3. Step 3: Cross multiply
    1,320,964.20x = 1,981,251.90 × 374,430.60
  4. Step 4: Simplify right side
    1,320,964.20x = 741,841,337,668.14
  5. Step 5: Solve for x
    x = 741,841,337,668.14/1,320,964.20
  6. Step 6: Final answer
    x = 561,590.80

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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.