Home / 1,191,192.92-1,787,008.26-392,521.56

Finding the Fourth Proportional to 1,191,192.92, 1,787,008.26 and 392,521.56

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Solution

The fourth proportional to 1,191,192.92, 1,787,008.26 and 392,521.56 is: 588,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,192.92 : 1,787,008.26 = 392,521.56 : x
  2. Step 2: Convert to fraction form
    1,191,192.92/1,787,008.26 = 392,521.56/x
  3. Step 3: Cross multiply
    1,191,192.92x = 1,787,008.26 × 392,521.56
  4. Step 4: Simplify right side
    1,191,192.92x = 701,439,269,948.09
  5. Step 5: Solve for x
    x = 701,439,269,948.09/1,191,192.92
  6. Step 6: Final answer
    x = 588,854.47

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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.