Home / 813,177.46-1,219,826.12-214,134.47

Finding the Fourth Proportional to 813,177.46, 1,219,826.12 and 214,134.47

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Solution

The fourth proportional to 813,177.46, 1,219,826.12 and 214,134.47 is: 321,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,177.46 : 1,219,826.12 = 214,134.47 : x
  2. Step 2: Convert to fraction form
    813,177.46/1,219,826.12 = 214,134.47/x
  3. Step 3: Cross multiply
    813,177.46x = 1,219,826.12 × 214,134.47
  4. Step 4: Simplify right side
    813,177.46x = 261,206,817,102.90
  5. Step 5: Solve for x
    x = 261,206,817,102.90/813,177.46
  6. Step 6: Final answer
    x = 321,217.48

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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.