Home / 1,079,791.50-1,490,112.39-627,111.66

Finding the Fourth Proportional to 1,079,791.50, 1,490,112.39 and 627,111.66

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Solution

The fourth proportional to 1,079,791.50, 1,490,112.39 and 627,111.66 is: 865,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,791.50 : 1,490,112.39 = 627,111.66 : x
  2. Step 2: Convert to fraction form
    1,079,791.50/1,490,112.39 = 627,111.66/x
  3. Step 3: Cross multiply
    1,079,791.50x = 1,490,112.39 × 627,111.66
  4. Step 4: Simplify right side
    1,079,791.50x = 934,466,854,479.47
  5. Step 5: Solve for x
    x = 934,466,854,479.47/1,079,791.50
  6. Step 6: Final answer
    x = 865,414.16

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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.