Home / 1,225,731.20-1,690,114.24-863,039.04

Finding the Fourth Proportional to 1,225,731.20, 1,690,114.24 and 863,039.04

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Solution

The fourth proportional to 1,225,731.20, 1,690,114.24 and 863,039.04 is: 1,190,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,731.20 : 1,690,114.24 = 863,039.04 : x
  2. Step 2: Convert to fraction form
    1,225,731.20/1,690,114.24 = 863,039.04/x
  3. Step 3: Cross multiply
    1,225,731.20x = 1,690,114.24 × 863,039.04
  4. Step 4: Simplify right side
    1,225,731.20x = 1,458,634,571,179.93
  5. Step 5: Solve for x
    x = 1,458,634,571,179.93/1,225,731.20
  6. Step 6: Final answer
    x = 1,190,011.78

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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.