Home / 863,881.42-1,296,215.97-443,452.78

Finding the Fourth Proportional to 863,881.42, 1,296,215.97 and 443,452.78

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Solution

The fourth proportional to 863,881.42, 1,296,215.97 and 443,452.78 is: 665,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,881.42 : 1,296,215.97 = 443,452.78 : x
  2. Step 2: Convert to fraction form
    863,881.42/1,296,215.97 = 443,452.78/x
  3. Step 3: Cross multiply
    863,881.42x = 1,296,215.97 × 443,452.78
  4. Step 4: Simplify right side
    863,881.42x = 574,810,575,376.90
  5. Step 5: Solve for x
    x = 574,810,575,376.90/863,881.42
  6. Step 6: Final answer
    x = 665,381.34

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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.