Home / 724,263.80-1,085,963.70-443,982.20

Finding the Fourth Proportional to 724,263.80, 1,085,963.70 and 443,982.20

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Solution

The fourth proportional to 724,263.80, 1,085,963.70 and 443,982.20 is: 665,708.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,263.80 : 1,085,963.70 = 443,982.20 : x
  2. Step 2: Convert to fraction form
    724,263.80/1,085,963.70 = 443,982.20/x
  3. Step 3: Cross multiply
    724,263.80x = 1,085,963.70 × 443,982.20
  4. Step 4: Simplify right side
    724,263.80x = 482,148,552,646.14
  5. Step 5: Solve for x
    x = 482,148,552,646.14/724,263.80
  6. Step 6: Final answer
    x = 665,708.48

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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.