Home / 724,267.80-1,085,969.70-443,986.20

Finding the Fourth Proportional to 724,267.80, 1,085,969.70 and 443,986.20

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Solution

The fourth proportional to 724,267.80, 1,085,969.70 and 443,986.20 is: 665,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,267.80 : 1,085,969.70 = 443,986.20 : x
  2. Step 2: Convert to fraction form
    724,267.80/1,085,969.70 = 443,986.20/x
  3. Step 3: Cross multiply
    724,267.80x = 1,085,969.70 × 443,986.20
  4. Step 4: Simplify right side
    724,267.80x = 482,155,560,418.14
  5. Step 5: Solve for x
    x = 482,155,560,418.14/724,267.80
  6. Step 6: Final answer
    x = 665,714.48

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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.