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Finding the Fourth Proportional to 489,593.62, 734,389.21 and 276,264.60

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Solution

The fourth proportional to 489,593.62, 734,389.21 and 276,264.60 is: 414,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,593.62 : 734,389.21 = 276,264.60 : x
  2. Step 2: Convert to fraction form
    489,593.62/734,389.21 = 276,264.60/x
  3. Step 3: Cross multiply
    489,593.62x = 734,389.21 × 276,264.60
  4. Step 4: Simplify right side
    489,593.62x = 202,885,741,344.97
  5. Step 5: Solve for x
    x = 202,885,741,344.97/489,593.62
  6. Step 6: Final answer
    x = 414,396.21

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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.