Home / 830,439.06-1,245,517.34-231,459.86

Finding the Fourth Proportional to 830,439.06, 1,245,517.34 and 231,459.86

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Solution

The fourth proportional to 830,439.06, 1,245,517.34 and 231,459.86 is: 347,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,439.06 : 1,245,517.34 = 231,459.86 : x
  2. Step 2: Convert to fraction form
    830,439.06/1,245,517.34 = 231,459.86/x
  3. Step 3: Cross multiply
    830,439.06x = 1,245,517.34 × 231,459.86
  4. Step 4: Simplify right side
    830,439.06x = 288,287,261,759.09
  5. Step 5: Solve for x
    x = 288,287,261,759.09/830,439.06
  6. Step 6: Final answer
    x = 347,150.41

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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.