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Finding the Fourth Proportional to 440,083.53, 660,346.73 and 327,988.85

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Solution

The fourth proportional to 440,083.53, 660,346.73 and 327,988.85 is: 492,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,083.53 : 660,346.73 = 327,988.85 : x
  2. Step 2: Convert to fraction form
    440,083.53/660,346.73 = 327,988.85/x
  3. Step 3: Cross multiply
    440,083.53x = 660,346.73 × 327,988.85
  4. Step 4: Simplify right side
    440,083.53x = 216,586,360,862.24
  5. Step 5: Solve for x
    x = 216,586,360,862.24/440,083.53
  6. Step 6: Final answer
    x = 492,148.30

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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.