Home / 1,191,081.20-1,786,237.86-392,172.62

Finding the Fourth Proportional to 1,191,081.20, 1,786,237.86 and 392,172.62

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Solution

The fourth proportional to 1,191,081.20, 1,786,237.86 and 392,172.62 is: 588,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,081.20 : 1,786,237.86 = 392,172.62 : x
  2. Step 2: Convert to fraction form
    1,191,081.20/1,786,237.86 = 392,172.62/x
  3. Step 3: Cross multiply
    1,191,081.20x = 1,786,237.86 × 392,172.62
  4. Step 4: Simplify right side
    1,191,081.20x = 700,513,581,499.39
  5. Step 5: Solve for x
    x = 700,513,581,499.39/1,191,081.20
  6. Step 6: Final answer
    x = 588,132.51

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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.