Home / 769,195.60-1,153,793.40-685,637.20

Finding the Fourth Proportional to 769,195.60, 1,153,793.40 and 685,637.20

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Solution

The fourth proportional to 769,195.60, 1,153,793.40 and 685,637.20 is: 1,028,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,195.60 : 1,153,793.40 = 685,637.20 : x
  2. Step 2: Convert to fraction form
    769,195.60/1,153,793.40 = 685,637.20/x
  3. Step 3: Cross multiply
    769,195.60x = 1,153,793.40 × 685,637.20
  4. Step 4: Simplify right side
    769,195.60x = 791,083,676,154.48
  5. Step 5: Solve for x
    x = 791,083,676,154.48/769,195.60
  6. Step 6: Final answer
    x = 1,028,455.80

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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.