Home / 1,191,051.20-1,786,192.86-392,142.54

Finding the Fourth Proportional to 1,191,051.20, 1,786,192.86 and 392,142.54

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Solution

The fourth proportional to 1,191,051.20, 1,786,192.86 and 392,142.54 is: 588,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,051.20 : 1,786,192.86 = 392,142.54 : x
  2. Step 2: Convert to fraction form
    1,191,051.20/1,786,192.86 = 392,142.54/x
  3. Step 3: Cross multiply
    1,191,051.20x = 1,786,192.86 × 392,142.54
  4. Step 4: Simplify right side
    1,191,051.20x = 700,442,205,050.26
  5. Step 5: Solve for x
    x = 700,442,205,050.26/1,191,051.20
  6. Step 6: Final answer
    x = 588,087.40

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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.