Home / 782,467.32-1,174,136.92-422,630.88

Finding the Fourth Proportional to 782,467.32, 1,174,136.92 and 422,630.88

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Solution

The fourth proportional to 782,467.32, 1,174,136.92 and 422,630.88 is: 634,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,467.32 : 1,174,136.92 = 422,630.88 : x
  2. Step 2: Convert to fraction form
    782,467.32/1,174,136.92 = 422,630.88/x
  3. Step 3: Cross multiply
    782,467.32x = 1,174,136.92 × 422,630.88
  4. Step 4: Simplify right side
    782,467.32x = 496,226,519,740.09
  5. Step 5: Solve for x
    x = 496,226,519,740.09/782,467.32
  6. Step 6: Final answer
    x = 634,181.78

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1.5x scale

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.