Home / 1,243,708.20-1,866,023.10-496,290.60

Finding the Fourth Proportional to 1,243,708.20, 1,866,023.10 and 496,290.60

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Solution

The fourth proportional to 1,243,708.20, 1,866,023.10 and 496,290.60 is: 744,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,708.20 : 1,866,023.10 = 496,290.60 : x
  2. Step 2: Convert to fraction form
    1,243,708.20/1,866,023.10 = 496,290.60/x
  3. Step 3: Cross multiply
    1,243,708.20x = 1,866,023.10 × 496,290.60
  4. Step 4: Simplify right side
    1,243,708.20x = 926,089,723,912.86
  5. Step 5: Solve for x
    x = 926,089,723,912.86/1,243,708.20
  6. Step 6: Final answer
    x = 744,619.78

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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.