Home / 818,008.68-1,227,136.86-256,990.44

Finding the Fourth Proportional to 818,008.68, 1,227,136.86 and 256,990.44

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Solution

The fourth proportional to 818,008.68, 1,227,136.86 and 256,990.44 is: 385,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,008.68 : 1,227,136.86 = 256,990.44 : x
  2. Step 2: Convert to fraction form
    818,008.68/1,227,136.86 = 256,990.44/x
  3. Step 3: Cross multiply
    818,008.68x = 1,227,136.86 × 256,990.44
  4. Step 4: Simplify right side
    818,008.68x = 315,362,441,591.62
  5. Step 5: Solve for x
    x = 315,362,441,591.62/818,008.68
  6. Step 6: Final answer
    x = 385,524.57

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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.