Home / 1,992,323.80-2,987,447.46-712,437.88

Finding the Fourth Proportional to 1,992,323.80, 2,987,447.46 and 712,437.88

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Solution

The fourth proportional to 1,992,323.80, 2,987,447.46 and 712,437.88 is: 1,068,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,323.80 : 2,987,447.46 = 712,437.88 : x
  2. Step 2: Convert to fraction form
    1,992,323.80/2,987,447.46 = 712,437.88/x
  3. Step 3: Cross multiply
    1,992,323.80x = 2,987,447.46 × 712,437.88
  4. Step 4: Simplify right side
    1,992,323.80x = 2,128,370,735,013.78
  5. Step 5: Solve for x
    x = 2,128,370,735,013.78/1,992,323.80
  6. Step 6: Final answer
    x = 1,068,285.55

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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.