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Finding the Fourth Proportional to 631,894.33, 871,801.36 and 359,769.76

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Solution

The fourth proportional to 631,894.33, 871,801.36 and 359,769.76 is: 496,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,894.33 : 871,801.36 = 359,769.76 : x
  2. Step 2: Convert to fraction form
    631,894.33/871,801.36 = 359,769.76/x
  3. Step 3: Cross multiply
    631,894.33x = 871,801.36 × 359,769.76
  4. Step 4: Simplify right side
    631,894.33x = 313,647,768,234.38
  5. Step 5: Solve for x
    x = 313,647,768,234.38/631,894.33
  6. Step 6: Final answer
    x = 496,361.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.