Home / 1,189,122.12-1,640,302.25-758,917.35

Finding the Fourth Proportional to 1,189,122.12, 1,640,302.25 and 758,917.35

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Solution

The fourth proportional to 1,189,122.12, 1,640,302.25 and 758,917.35 is: 1,046,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,122.12 : 1,640,302.25 = 758,917.35 : x
  2. Step 2: Convert to fraction form
    1,189,122.12/1,640,302.25 = 758,917.35/x
  3. Step 3: Cross multiply
    1,189,122.12x = 1,640,302.25 × 758,917.35
  4. Step 4: Simplify right side
    1,189,122.12x = 1,244,853,832,974.45
  5. Step 5: Solve for x
    x = 1,244,853,832,974.45/1,189,122.12
  6. Step 6: Final answer
    x = 1,046,867.95

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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.