Home / 818,197.38-1,227,492.87-257,231.46

Finding the Fourth Proportional to 818,197.38, 1,227,492.87 and 257,231.46

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Solution

The fourth proportional to 818,197.38, 1,227,492.87 and 257,231.46 is: 385,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,197.38 : 1,227,492.87 = 257,231.46 : x
  2. Step 2: Convert to fraction form
    818,197.38/1,227,492.87 = 257,231.46/x
  3. Step 3: Cross multiply
    818,197.38x = 1,227,492.87 × 257,231.46
  4. Step 4: Simplify right side
    818,197.38x = 315,749,783,089.69
  5. Step 5: Solve for x
    x = 315,749,783,089.69/818,197.38
  6. Step 6: Final answer
    x = 385,909.06

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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.