Home / 812,096.70-1,217,402.01-313,084.86

Finding the Fourth Proportional to 812,096.70, 1,217,402.01 and 313,084.86

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Solution

The fourth proportional to 812,096.70, 1,217,402.01 and 313,084.86 is: 469,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,096.70 : 1,217,402.01 = 313,084.86 : x
  2. Step 2: Convert to fraction form
    812,096.70/1,217,402.01 = 313,084.86/x
  3. Step 3: Cross multiply
    812,096.70x = 1,217,402.01 × 313,084.86
  4. Step 4: Simplify right side
    812,096.70x = 381,150,137,864.57
  5. Step 5: Solve for x
    x = 381,150,137,864.57/812,096.70
  6. Step 6: Final answer
    x = 469,340.83

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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.