Home / 871,036.20-1,306,256.39-331,162.29

Finding the Fourth Proportional to 871,036.20, 1,306,256.39 and 331,162.29

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Solution

The fourth proportional to 871,036.20, 1,306,256.39 and 331,162.29 is: 496,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,036.20 : 1,306,256.39 = 331,162.29 : x
  2. Step 2: Convert to fraction form
    871,036.20/1,306,256.39 = 331,162.29/x
  3. Step 3: Cross multiply
    871,036.20x = 1,306,256.39 × 331,162.29
  4. Step 4: Simplify right side
    871,036.20x = 432,582,857,025.58
  5. Step 5: Solve for x
    x = 432,582,857,025.58/871,036.20
  6. Step 6: Final answer
    x = 496,630.17

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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.