Home / 1,288,902.66-1,930,410.56-615,458.03

Finding the Fourth Proportional to 1,288,902.66, 1,930,410.56 and 615,458.03

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Solution

The fourth proportional to 1,288,902.66, 1,930,410.56 and 615,458.03 is: 921,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,902.66 : 1,930,410.56 = 615,458.03 : x
  2. Step 2: Convert to fraction form
    1,288,902.66/1,930,410.56 = 615,458.03/x
  3. Step 3: Cross multiply
    1,288,902.66x = 1,930,410.56 × 615,458.03
  4. Step 4: Simplify right side
    1,288,902.66x = 1,188,086,667,619.45
  5. Step 5: Solve for x
    x = 1,188,086,667,619.45/1,288,902.66
  6. Step 6: Final answer
    x = 921,781.53

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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.