Home / 812,297.43-1,218,633.03-272,625.30

Finding the Fourth Proportional to 812,297.43, 1,218,633.03 and 272,625.30

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Solution

The fourth proportional to 812,297.43, 1,218,633.03 and 272,625.30 is: 409,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,297.43 : 1,218,633.03 = 272,625.30 : x
  2. Step 2: Convert to fraction form
    812,297.43/1,218,633.03 = 272,625.30/x
  3. Step 3: Cross multiply
    812,297.43x = 1,218,633.03 × 272,625.30
  4. Step 4: Simplify right side
    812,297.43x = 332,230,195,393.66
  5. Step 5: Solve for x
    x = 332,230,195,393.66/812,297.43
  6. Step 6: Final answer
    x = 409,000.67

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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.