Home / 1,992,251.72-2,987,339.97-712,365.86

Finding the Fourth Proportional to 1,992,251.72, 2,987,339.97 and 712,365.86

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Solution

The fourth proportional to 1,992,251.72, 2,987,339.97 and 712,365.86 is: 1,068,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,251.72 : 2,987,339.97 = 712,365.86 : x
  2. Step 2: Convert to fraction form
    1,992,251.72/2,987,339.97 = 712,365.86/x
  3. Step 3: Cross multiply
    1,992,251.72x = 2,987,339.97 × 712,365.86
  4. Step 4: Simplify right side
    1,992,251.72x = 2,128,079,006,841.42
  5. Step 5: Solve for x
    x = 2,128,079,006,841.42/1,992,251.72
  6. Step 6: Final answer
    x = 1,068,177.77

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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.