Home / 1,138,974.48-1,571,717.20-629,646.48

Finding the Fourth Proportional to 1,138,974.48, 1,571,717.20 and 629,646.48

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Solution

The fourth proportional to 1,138,974.48, 1,571,717.20 and 629,646.48 is: 868,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,974.48 : 1,571,717.20 = 629,646.48 : x
  2. Step 2: Convert to fraction form
    1,138,974.48/1,571,717.20 = 629,646.48/x
  3. Step 3: Cross multiply
    1,138,974.48x = 1,571,717.20 × 629,646.48
  4. Step 4: Simplify right side
    1,138,974.48x = 989,626,202,535.46
  5. Step 5: Solve for x
    x = 989,626,202,535.46/1,138,974.48
  6. Step 6: Final answer
    x = 868,874.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.