Home / 1,191,187.92-1,787,000.76-392,516.56

Finding the Fourth Proportional to 1,191,187.92, 1,787,000.76 and 392,516.56

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Solution

The fourth proportional to 1,191,187.92, 1,787,000.76 and 392,516.56 is: 588,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,187.92 : 1,787,000.76 = 392,516.56 : x
  2. Step 2: Convert to fraction form
    1,191,187.92/1,787,000.76 = 392,516.56/x
  3. Step 3: Cross multiply
    1,191,187.92x = 1,787,000.76 × 392,516.56
  4. Step 4: Simplify right side
    1,191,187.92x = 701,427,391,032.59
  5. Step 5: Solve for x
    x = 701,427,391,032.59/1,191,187.92
  6. Step 6: Final answer
    x = 588,846.96

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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.