Home / 769,230.60-1,153,845.90-685,672.20

Finding the Fourth Proportional to 769,230.60, 1,153,845.90 and 685,672.20

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Solution

The fourth proportional to 769,230.60, 1,153,845.90 and 685,672.20 is: 1,028,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,230.60 : 1,153,845.90 = 685,672.20 : x
  2. Step 2: Convert to fraction form
    769,230.60/1,153,845.90 = 685,672.20/x
  3. Step 3: Cross multiply
    769,230.60x = 1,153,845.90 × 685,672.20
  4. Step 4: Simplify right side
    769,230.60x = 791,160,056,713.98
  5. Step 5: Solve for x
    x = 791,160,056,713.98/769,230.60
  6. Step 6: Final answer
    x = 1,028,508.30

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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.