Home / 1,320,748.80-1,981,123.20-374,107.20

Finding the Fourth Proportional to 1,320,748.80, 1,981,123.20 and 374,107.20

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Solution

The fourth proportional to 1,320,748.80, 1,981,123.20 and 374,107.20 is: 561,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,748.80 : 1,981,123.20 = 374,107.20 : x
  2. Step 2: Convert to fraction form
    1,320,748.80/1,981,123.20 = 374,107.20/x
  3. Step 3: Cross multiply
    1,320,748.80x = 1,981,123.20 × 374,107.20
  4. Step 4: Simplify right side
    1,320,748.80x = 741,152,453,207.04
  5. Step 5: Solve for x
    x = 741,152,453,207.04/1,320,748.80
  6. Step 6: Final answer
    x = 561,160.80

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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.