Home / 753,761.63-1,040,195.28-409,600.42

Finding the Fourth Proportional to 753,761.63, 1,040,195.28 and 409,600.42

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Solution

The fourth proportional to 753,761.63, 1,040,195.28 and 409,600.42 is: 565,250.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,761.63 : 1,040,195.28 = 409,600.42 : x
  2. Step 2: Convert to fraction form
    753,761.63/1,040,195.28 = 409,600.42/x
  3. Step 3: Cross multiply
    753,761.63x = 1,040,195.28 × 409,600.42
  4. Step 4: Simplify right side
    753,761.63x = 426,064,422,505.53
  5. Step 5: Solve for x
    x = 426,064,422,505.53/753,761.63
  6. Step 6: Final answer
    x = 565,250.88

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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.