Home / 1,079,791-1,490,111.70-627,111.16

Finding the Fourth Proportional to 1,079,791, 1,490,111.70 and 627,111.16

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Solution

The fourth proportional to 1,079,791, 1,490,111.70 and 627,111.16 is: 865,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,791 : 1,490,111.70 = 627,111.16 : x
  2. Step 2: Convert to fraction form
    1,079,791/1,490,111.70 = 627,111.16/x
  3. Step 3: Cross multiply
    1,079,791x = 1,490,111.70 × 627,111.16
  4. Step 4: Simplify right side
    1,079,791x = 934,465,676,716.57
  5. Step 5: Solve for x
    x = 934,465,676,716.57/1,079,791
  6. Step 6: Final answer
    x = 865,413.47

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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.