Home / 871,320.20-1,306,980.30-231,622.70

Finding the Fourth Proportional to 871,320.20, 1,306,980.30 and 231,622.70

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Solution

The fourth proportional to 871,320.20, 1,306,980.30 and 231,622.70 is: 347,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,320.20 : 1,306,980.30 = 231,622.70 : x
  2. Step 2: Convert to fraction form
    871,320.20/1,306,980.30 = 231,622.70/x
  3. Step 3: Cross multiply
    871,320.20x = 1,306,980.30 × 231,622.70
  4. Step 4: Simplify right side
    871,320.20x = 302,726,305,932.81
  5. Step 5: Solve for x
    x = 302,726,305,932.81/871,320.20
  6. Step 6: Final answer
    x = 347,434.05

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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.