Home / 1,191,053.20-1,786,195.86-392,144.53

Finding the Fourth Proportional to 1,191,053.20, 1,786,195.86 and 392,144.53

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Solution

The fourth proportional to 1,191,053.20, 1,786,195.86 and 392,144.53 is: 588,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,053.20 : 1,786,195.86 = 392,144.53 : x
  2. Step 2: Convert to fraction form
    1,191,053.20/1,786,195.86 = 392,144.53/x
  3. Step 3: Cross multiply
    1,191,053.20x = 1,786,195.86 × 392,144.53
  4. Step 4: Simplify right side
    1,191,053.20x = 700,446,936,007.65
  5. Step 5: Solve for x
    x = 700,446,936,007.65/1,191,053.20
  6. Step 6: Final answer
    x = 588,090.39

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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.