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Finding the Fourth Proportional to 644,952.20, 966,737.10 and 245,438.60

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Solution

The fourth proportional to 644,952.20, 966,737.10 and 245,438.60 is: 367,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,952.20 : 966,737.10 = 245,438.60 : x
  2. Step 2: Convert to fraction form
    644,952.20/966,737.10 = 245,438.60/x
  3. Step 3: Cross multiply
    644,952.20x = 966,737.10 × 245,438.60
  4. Step 4: Simplify right side
    644,952.20x = 237,274,600,392.06
  5. Step 5: Solve for x
    x = 237,274,600,392.06/644,952.20
  6. Step 6: Final answer
    x = 367,894.86

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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.