Home / 818,062.60-1,227,132.30-257,115.40

Finding the Fourth Proportional to 818,062.60, 1,227,132.30 and 257,115.40

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Solution

The fourth proportional to 818,062.60, 1,227,132.30 and 257,115.40 is: 385,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,062.60 : 1,227,132.30 = 257,115.40 : x
  2. Step 2: Convert to fraction form
    818,062.60/1,227,132.30 = 257,115.40/x
  3. Step 3: Cross multiply
    818,062.60x = 1,227,132.30 × 257,115.40
  4. Step 4: Simplify right side
    818,062.60x = 315,514,612,167.42
  5. Step 5: Solve for x
    x = 315,514,612,167.42/818,062.60
  6. Step 6: Final answer
    x = 385,685.17

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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.