Home / 1,079,802-1,490,126.88-627,122.16

Finding the Fourth Proportional to 1,079,802, 1,490,126.88 and 627,122.16

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Solution

The fourth proportional to 1,079,802, 1,490,126.88 and 627,122.16 is: 865,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,802 : 1,490,126.88 = 627,122.16 : x
  2. Step 2: Convert to fraction form
    1,079,802/1,490,126.88 = 627,122.16/x
  3. Step 3: Cross multiply
    1,079,802x = 1,490,126.88 × 627,122.16
  4. Step 4: Simplify right side
    1,079,802x = 934,491,587,659.66
  5. Step 5: Solve for x
    x = 934,491,587,659.66/1,079,802
  6. Step 6: Final answer
    x = 865,428.65

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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.