Home / 801,179.64-1,105,592.22-438,618.78

Finding the Fourth Proportional to 801,179.64, 1,105,592.22 and 438,618.78

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Solution

The fourth proportional to 801,179.64, 1,105,592.22 and 438,618.78 is: 605,274.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,179.64 : 1,105,592.22 = 438,618.78 : x
  2. Step 2: Convert to fraction form
    801,179.64/1,105,592.22 = 438,618.78/x
  3. Step 3: Cross multiply
    801,179.64x = 1,105,592.22 × 438,618.78
  4. Step 4: Simplify right side
    801,179.64x = 484,933,510,713.89
  5. Step 5: Solve for x
    x = 484,933,510,713.89/801,179.64
  6. Step 6: Final answer
    x = 605,274.38

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1.5x scale

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.