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Finding the Fourth Proportional to 647,744.80, 971,617.20 and 332,816.80

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Solution

The fourth proportional to 647,744.80, 971,617.20 and 332,816.80 is: 499,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,744.80 : 971,617.20 = 332,816.80 : x
  2. Step 2: Convert to fraction form
    647,744.80/971,617.20 = 332,816.80/x
  3. Step 3: Cross multiply
    647,744.80x = 971,617.20 × 332,816.80
  4. Step 4: Simplify right side
    647,744.80x = 323,370,527,328.96
  5. Step 5: Solve for x
    x = 323,370,527,328.96/647,744.80
  6. Step 6: Final answer
    x = 499,225.20

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Similar ratio
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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.