Home / 1,121,622.10-1,682,433.15-722,713.30

Finding the Fourth Proportional to 1,121,622.10, 1,682,433.15 and 722,713.30

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Solution

The fourth proportional to 1,121,622.10, 1,682,433.15 and 722,713.30 is: 1,084,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,622.10 : 1,682,433.15 = 722,713.30 : x
  2. Step 2: Convert to fraction form
    1,121,622.10/1,682,433.15 = 722,713.30/x
  3. Step 3: Cross multiply
    1,121,622.10x = 1,682,433.15 × 722,713.30
  4. Step 4: Simplify right side
    1,121,622.10x = 1,215,916,813,865.90
  5. Step 5: Solve for x
    x = 1,215,916,813,865.90/1,121,622.10
  6. Step 6: Final answer
    x = 1,084,069.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.