Home / 1,409,691.38-1,945,376.07-765,111.56

Finding the Fourth Proportional to 1,409,691.38, 1,945,376.07 and 765,111.56

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Solution

The fourth proportional to 1,409,691.38, 1,945,376.07 and 765,111.56 is: 1,055,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,691.38 : 1,945,376.07 = 765,111.56 : x
  2. Step 2: Convert to fraction form
    1,409,691.38/1,945,376.07 = 765,111.56/x
  3. Step 3: Cross multiply
    1,409,691.38x = 1,945,376.07 × 765,111.56
  4. Step 4: Simplify right side
    1,409,691.38x = 1,488,429,719,704.37
  5. Step 5: Solve for x
    x = 1,488,429,719,704.37/1,409,691.38
  6. Step 6: Final answer
    x = 1,055,855.02

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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.