Home / 753,893.92-1,040,381.65-409,729.85

Finding the Fourth Proportional to 753,893.92, 1,040,381.65 and 409,729.85

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Solution

The fourth proportional to 753,893.92, 1,040,381.65 and 409,729.85 is: 565,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,893.92 : 1,040,381.65 = 409,729.85 : x
  2. Step 2: Convert to fraction form
    753,893.92/1,040,381.65 = 409,729.85/x
  3. Step 3: Cross multiply
    753,893.92x = 1,040,381.65 × 409,729.85
  4. Step 4: Simplify right side
    753,893.92x = 426,275,417,397.25
  5. Step 5: Solve for x
    x = 426,275,417,397.25/753,893.92
  6. Step 6: Final answer
    x = 565,431.56

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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.