Home / 644,452.08-965,206.40-307,729.76

Finding the Fourth Proportional to 644,452.08, 965,206.40 and 307,729.76

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Solution

The fourth proportional to 644,452.08, 965,206.40 and 307,729.76 is: 460,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,452.08 : 965,206.40 = 307,729.76 : x
  2. Step 2: Convert to fraction form
    644,452.08/965,206.40 = 307,729.76/x
  3. Step 3: Cross multiply
    644,452.08x = 965,206.40 × 307,729.76
  4. Step 4: Simplify right side
    644,452.08x = 297,022,737,004.80
  5. Step 5: Solve for x
    x = 297,022,737,004.80/644,452.08
  6. Step 6: Final answer
    x = 460,891.89

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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.