Home / 1,191,337.86-1,786,622.85-392,429.19

Finding the Fourth Proportional to 1,191,337.86, 1,786,622.85 and 392,429.19

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Solution

The fourth proportional to 1,191,337.86, 1,786,622.85 and 392,429.19 is: 588,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,337.86 : 1,786,622.85 = 392,429.19 : x
  2. Step 2: Convert to fraction form
    1,191,337.86/1,786,622.85 = 392,429.19/x
  3. Step 3: Cross multiply
    1,191,337.86x = 1,786,622.85 × 392,429.19
  4. Step 4: Simplify right side
    1,191,337.86x = 701,122,957,860.99
  5. Step 5: Solve for x
    x = 701,122,957,860.99/1,191,337.86
  6. Step 6: Final answer
    x = 588,517.31

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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.