Home / 820,136.96-1,230,386-251,596.32

Finding the Fourth Proportional to 820,136.96, 1,230,386 and 251,596.32

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Solution

The fourth proportional to 820,136.96, 1,230,386 and 251,596.32 is: 377,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,136.96 : 1,230,386 = 251,596.32 : x
  2. Step 2: Convert to fraction form
    820,136.96/1,230,386 = 251,596.32/x
  3. Step 3: Cross multiply
    820,136.96x = 1,230,386 × 251,596.32
  4. Step 4: Simplify right side
    820,136.96x = 309,560,589,779.52
  5. Step 5: Solve for x
    x = 309,560,589,779.52/820,136.96
  6. Step 6: Final answer
    x = 377,449.87

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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.