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Finding the Fourth Proportional to 329,672.70, 494,509.05 and 276,528.60

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Solution

The fourth proportional to 329,672.70, 494,509.05 and 276,528.60 is: 414,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,672.70 : 494,509.05 = 276,528.60 : x
  2. Step 2: Convert to fraction form
    329,672.70/494,509.05 = 276,528.60/x
  3. Step 3: Cross multiply
    329,672.70x = 494,509.05 × 276,528.60
  4. Step 4: Simplify right side
    329,672.70x = 136,745,895,283.83
  5. Step 5: Solve for x
    x = 136,745,895,283.83/329,672.70
  6. Step 6: Final answer
    x = 414,792.90

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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.