Home / 813,177.59-1,219,826.31-214,134.59

Finding the Fourth Proportional to 813,177.59, 1,219,826.31 and 214,134.59

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Solution

The fourth proportional to 813,177.59, 1,219,826.31 and 214,134.59 is: 321,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,177.59 : 1,219,826.31 = 214,134.59 : x
  2. Step 2: Convert to fraction form
    813,177.59/1,219,826.31 = 214,134.59/x
  3. Step 3: Cross multiply
    813,177.59x = 1,219,826.31 × 214,134.59
  4. Step 4: Simplify right side
    813,177.59x = 261,207,006,763.06
  5. Step 5: Solve for x
    x = 261,207,006,763.06/813,177.59
  6. Step 6: Final answer
    x = 321,217.67

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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.