Home / 1,247,246.10-1,720,879.83-763,634.79

Finding the Fourth Proportional to 1,247,246.10, 1,720,879.83 and 763,634.79

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Solution

The fourth proportional to 1,247,246.10, 1,720,879.83 and 763,634.79 is: 1,053,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,246.10 : 1,720,879.83 = 763,634.79 : x
  2. Step 2: Convert to fraction form
    1,247,246.10/1,720,879.83 = 763,634.79/x
  3. Step 3: Cross multiply
    1,247,246.10x = 1,720,879.83 × 763,634.79
  4. Step 4: Simplify right side
    1,247,246.10x = 1,314,123,707,597.29
  5. Step 5: Solve for x
    x = 1,314,123,707,597.29/1,247,246.10
  6. Step 6: Final answer
    x = 1,053,620.22

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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.