Home / 1,392,895.10-2,089,604.89-992,542.70

Finding the Fourth Proportional to 1,392,895.10, 2,089,604.89 and 992,542.70

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Solution

The fourth proportional to 1,392,895.10, 2,089,604.89 and 992,542.70 is: 1,489,000.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,895.10 : 2,089,604.89 = 992,542.70 : x
  2. Step 2: Convert to fraction form
    1,392,895.10/2,089,604.89 = 992,542.70/x
  3. Step 3: Cross multiply
    1,392,895.10x = 2,089,604.89 × 992,542.70
  4. Step 4: Simplify right side
    1,392,895.10x = 2,074,022,079,453.80
  5. Step 5: Solve for x
    x = 2,074,022,079,453.80/1,392,895.10
  6. Step 6: Final answer
    x = 1,489,000.92

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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.