Home / 1,992,331.80-2,987,459.46-712,445.88

Finding the Fourth Proportional to 1,992,331.80, 2,987,459.46 and 712,445.88

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Solution

The fourth proportional to 1,992,331.80, 2,987,459.46 and 712,445.88 is: 1,068,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,331.80 : 2,987,459.46 = 712,445.88 : x
  2. Step 2: Convert to fraction form
    1,992,331.80/2,987,459.46 = 712,445.88/x
  3. Step 3: Cross multiply
    1,992,331.80x = 2,987,459.46 × 712,445.88
  4. Step 4: Simplify right side
    1,992,331.80x = 2,128,403,183,944.03
  5. Step 5: Solve for x
    x = 2,128,403,183,944.03/1,992,331.80
  6. Step 6: Final answer
    x = 1,068,297.55

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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.