Home / 863,892.42-1,296,232.47-443,463.78

Finding the Fourth Proportional to 863,892.42, 1,296,232.47 and 443,463.78

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Solution

The fourth proportional to 863,892.42, 1,296,232.47 and 443,463.78 is: 665,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,892.42 : 1,296,232.47 = 443,463.78 : x
  2. Step 2: Convert to fraction form
    863,892.42/1,296,232.47 = 443,463.78/x
  3. Step 3: Cross multiply
    863,892.42x = 1,296,232.47 × 443,463.78
  4. Step 4: Simplify right side
    863,892.42x = 574,832,150,904.94
  5. Step 5: Solve for x
    x = 574,832,150,904.94/863,892.42
  6. Step 6: Final answer
    x = 665,397.84

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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.