Home / 644,633.10-967,982.40-512,611.20

Finding the Fourth Proportional to 644,633.10, 967,982.40 and 512,611.20

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Solution

The fourth proportional to 644,633.10, 967,982.40 and 512,611.20 is: 769,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,633.10 : 967,982.40 = 512,611.20 : x
  2. Step 2: Convert to fraction form
    644,633.10/967,982.40 = 512,611.20/x
  3. Step 3: Cross multiply
    644,633.10x = 967,982.40 × 512,611.20
  4. Step 4: Simplify right side
    644,633.10x = 496,198,619,642.88
  5. Step 5: Solve for x
    x = 496,198,619,642.88/644,633.10
  6. Step 6: Final answer
    x = 769,738.04

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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.