Home / 1,191,191.92-1,787,006.76-392,520.56

Finding the Fourth Proportional to 1,191,191.92, 1,787,006.76 and 392,520.56

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Solution

The fourth proportional to 1,191,191.92, 1,787,006.76 and 392,520.56 is: 588,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,191.92 : 1,787,006.76 = 392,520.56 : x
  2. Step 2: Convert to fraction form
    1,191,191.92/1,787,006.76 = 392,520.56/x
  3. Step 3: Cross multiply
    1,191,191.92x = 1,787,006.76 × 392,520.56
  4. Step 4: Simplify right side
    1,191,191.92x = 701,436,894,158.99
  5. Step 5: Solve for x
    x = 701,436,894,158.99/1,191,191.92
  6. Step 6: Final answer
    x = 588,852.97

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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.