Home / 1,191,189.92-1,787,003.76-392,518.56

Finding the Fourth Proportional to 1,191,189.92, 1,787,003.76 and 392,518.56

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Solution

The fourth proportional to 1,191,189.92, 1,787,003.76 and 392,518.56 is: 588,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,189.92 : 1,787,003.76 = 392,518.56 : x
  2. Step 2: Convert to fraction form
    1,191,189.92/1,787,003.76 = 392,518.56/x
  3. Step 3: Cross multiply
    1,191,189.92x = 1,787,003.76 × 392,518.56
  4. Step 4: Simplify right side
    1,191,189.92x = 701,432,142,589.79
  5. Step 5: Solve for x
    x = 701,432,142,589.79/1,191,189.92
  6. Step 6: Final answer
    x = 588,849.96

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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.