Home / 1,409,738.12-1,945,414.20-765,144.48

Finding the Fourth Proportional to 1,409,738.12, 1,945,414.20 and 765,144.48

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Solution

The fourth proportional to 1,409,738.12, 1,945,414.20 and 765,144.48 is: 1,055,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,738.12 : 1,945,414.20 = 765,144.48 : x
  2. Step 2: Convert to fraction form
    1,409,738.12/1,945,414.20 = 765,144.48/x
  3. Step 3: Cross multiply
    1,409,738.12x = 1,945,414.20 × 765,144.48
  4. Step 4: Simplify right side
    1,409,738.12x = 1,488,522,926,716.55
  5. Step 5: Solve for x
    x = 1,488,522,926,716.55/1,409,738.12
  6. Step 6: Final answer
    x = 1,055,886.13

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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.