Home / 1,992,250.72-2,987,338.47-712,364.86

Finding the Fourth Proportional to 1,992,250.72, 2,987,338.47 and 712,364.86

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Solution

The fourth proportional to 1,992,250.72, 2,987,338.47 and 712,364.86 is: 1,068,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,250.72 : 2,987,338.47 = 712,364.86 : x
  2. Step 2: Convert to fraction form
    1,992,250.72/2,987,338.47 = 712,364.86/x
  3. Step 3: Cross multiply
    1,992,250.72x = 2,987,338.47 × 712,364.86
  4. Step 4: Simplify right side
    1,992,250.72x = 2,128,074,950,954.16
  5. Step 5: Solve for x
    x = 2,128,074,950,954.16/1,992,250.72
  6. Step 6: Final answer
    x = 1,068,176.27

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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.