Home / 440,734.56-661,288.61-240,821.38

Finding the Fourth Proportional to 440,734.56, 661,288.61 and 240,821.38

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Solution

The fourth proportional to 440,734.56, 661,288.61 and 240,821.38 is: 361,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,734.56 : 661,288.61 = 240,821.38 : x
  2. Step 2: Convert to fraction form
    440,734.56/661,288.61 = 240,821.38/x
  3. Step 3: Cross multiply
    440,734.56x = 661,288.61 × 240,821.38
  4. Step 4: Simplify right side
    440,734.56x = 159,252,435,638.48
  5. Step 5: Solve for x
    x = 159,252,435,638.48/440,734.56
  6. Step 6: Final answer
    x = 361,334.12

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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.