Home / 818,100.12-1,227,233.96-313,085.90

Finding the Fourth Proportional to 818,100.12, 1,227,233.96 and 313,085.90

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Solution

The fourth proportional to 818,100.12, 1,227,233.96 and 313,085.90 is: 469,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,100.12 : 1,227,233.96 = 313,085.90 : x
  2. Step 2: Convert to fraction form
    818,100.12/1,227,233.96 = 313,085.90/x
  3. Step 3: Cross multiply
    818,100.12x = 1,227,233.96 × 313,085.90
  4. Step 4: Simplify right side
    818,100.12x = 384,229,648,877.16
  5. Step 5: Solve for x
    x = 384,229,648,877.16/818,100.12
  6. Step 6: Final answer
    x = 469,660.91

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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.