Home / 753,171.10-1,039,371.92-409,003.72

Finding the Fourth Proportional to 753,171.10, 1,039,371.92 and 409,003.72

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Solution

The fourth proportional to 753,171.10, 1,039,371.92 and 409,003.72 is: 564,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,171.10 : 1,039,371.92 = 409,003.72 : x
  2. Step 2: Convert to fraction form
    753,171.10/1,039,371.92 = 409,003.72/x
  3. Step 3: Cross multiply
    753,171.10x = 1,039,371.92 × 409,003.72
  4. Step 4: Simplify right side
    753,171.10x = 425,106,978,633.86
  5. Step 5: Solve for x
    x = 425,106,978,633.86/753,171.10
  6. Step 6: Final answer
    x = 564,422.85

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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.