Home / 818,207.70-1,227,504.71-257,242.20

Finding the Fourth Proportional to 818,207.70, 1,227,504.71 and 257,242.20

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Solution

The fourth proportional to 818,207.70, 1,227,504.71 and 257,242.20 is: 385,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,207.70 : 1,227,504.71 = 257,242.20 : x
  2. Step 2: Convert to fraction form
    818,207.70/1,227,504.71 = 257,242.20/x
  3. Step 3: Cross multiply
    818,207.70x = 1,227,504.71 × 257,242.20
  4. Step 4: Simplify right side
    818,207.70x = 315,766,008,150.73
  5. Step 5: Solve for x
    x = 315,766,008,150.73/818,207.70
  6. Step 6: Final answer
    x = 385,924.03

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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.