Home / 1,225,224.60-1,690,680.43-681,272.61

Finding the Fourth Proportional to 1,225,224.60, 1,690,680.43 and 681,272.61

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Solution

The fourth proportional to 1,225,224.60, 1,690,680.43 and 681,272.61 is: 940,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,224.60 : 1,690,680.43 = 681,272.61 : x
  2. Step 2: Convert to fraction form
    1,225,224.60/1,690,680.43 = 681,272.61/x
  3. Step 3: Cross multiply
    1,225,224.60x = 1,690,680.43 × 681,272.61
  4. Step 4: Simplify right side
    1,225,224.60x = 1,151,814,263,733.56
  5. Step 5: Solve for x
    x = 1,151,814,263,733.56/1,225,224.60
  6. Step 6: Final answer
    x = 940,084.18

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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.