Home / 1,992,107.52-2,749,109.76-1,086,739.20

Finding the Fourth Proportional to 1,992,107.52, 2,749,109.76 and 1,086,739.20

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Solution

The fourth proportional to 1,992,107.52, 2,749,109.76 and 1,086,739.20 is: 1,499,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,107.52 : 2,749,109.76 = 1,086,739.20 : x
  2. Step 2: Convert to fraction form
    1,992,107.52/2,749,109.76 = 1,086,739.20/x
  3. Step 3: Cross multiply
    1,992,107.52x = 2,749,109.76 × 1,086,739.20
  4. Step 4: Simplify right side
    1,992,107.52x = 2,987,565,341,294.59
  5. Step 5: Solve for x
    x = 2,987,565,341,294.59/1,992,107.52
  6. Step 6: Final answer
    x = 1,499,700.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.