Home / 643,556.72-965,336.30-264,213.34

Finding the Fourth Proportional to 643,556.72, 965,336.30 and 264,213.34

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Solution

The fourth proportional to 643,556.72, 965,336.30 and 264,213.34 is: 396,320.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,556.72 : 965,336.30 = 264,213.34 : x
  2. Step 2: Convert to fraction form
    643,556.72/965,336.30 = 264,213.34/x
  3. Step 3: Cross multiply
    643,556.72x = 965,336.30 × 264,213.34
  4. Step 4: Simplify right side
    643,556.72x = 255,054,728,046.24
  5. Step 5: Solve for x
    x = 255,054,728,046.24/643,556.72
  6. Step 6: Final answer
    x = 396,320.51

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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.