Home / 644,286.08-966,002.56-307,378.73

Finding the Fourth Proportional to 644,286.08, 966,002.56 and 307,378.73

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Solution

The fourth proportional to 644,286.08, 966,002.56 and 307,378.73 is: 460,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,286.08 : 966,002.56 = 307,378.73 : x
  2. Step 2: Convert to fraction form
    644,286.08/966,002.56 = 307,378.73/x
  3. Step 3: Cross multiply
    644,286.08x = 966,002.56 × 307,378.73
  4. Step 4: Simplify right side
    644,286.08x = 296,928,640,069.55
  5. Step 5: Solve for x
    x = 296,928,640,069.55/644,286.08
  6. Step 6: Final answer
    x = 460,864.59

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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.