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Finding the Fourth Proportional to 647,782.80, 971,285.40 and 332,854.80

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Solution

The fourth proportional to 647,782.80, 971,285.40 and 332,854.80 is: 499,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,782.80 : 971,285.40 = 332,854.80 : x
  2. Step 2: Convert to fraction form
    647,782.80/971,285.40 = 332,854.80/x
  3. Step 3: Cross multiply
    647,782.80x = 971,285.40 × 332,854.80
  4. Step 4: Simplify right side
    647,782.80x = 323,297,007,559.92
  5. Step 5: Solve for x
    x = 323,297,007,559.92/647,782.80
  6. Step 6: Final answer
    x = 499,082.42

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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.