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Finding the Fourth Proportional to 489,244.70, 733,867.05 and 329,812.40

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Solution

The fourth proportional to 489,244.70, 733,867.05 and 329,812.40 is: 494,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,244.70 : 733,867.05 = 329,812.40 : x
  2. Step 2: Convert to fraction form
    489,244.70/733,867.05 = 329,812.40/x
  3. Step 3: Cross multiply
    489,244.70x = 733,867.05 × 329,812.40
  4. Step 4: Simplify right side
    489,244.70x = 242,038,453,041.42
  5. Step 5: Solve for x
    x = 242,038,453,041.42/489,244.70
  6. Step 6: Final answer
    x = 494,718.60

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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.