Home / 1,409,755.92-1,945,411.05-765,162.38

Finding the Fourth Proportional to 1,409,755.92, 1,945,411.05 and 765,162.38

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Solution

The fourth proportional to 1,409,755.92, 1,945,411.05 and 765,162.38 is: 1,055,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,755.92 : 1,945,411.05 = 765,162.38 : x
  2. Step 2: Convert to fraction form
    1,409,755.92/1,945,411.05 = 765,162.38/x
  3. Step 3: Cross multiply
    1,409,755.92x = 1,945,411.05 × 765,162.38
  4. Step 4: Simplify right side
    1,409,755.92x = 1,488,555,339,369.24
  5. Step 5: Solve for x
    x = 1,488,555,339,369.24/1,409,755.92
  6. Step 6: Final answer
    x = 1,055,895.79

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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.