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Finding the Fourth Proportional to 631,932.60, 871,969.44 and 359,965.94

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Solution

The fourth proportional to 631,932.60, 871,969.44 and 359,965.94 is: 496,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,932.60 : 871,969.44 = 359,965.94 : x
  2. Step 2: Convert to fraction form
    631,932.60/871,969.44 = 359,965.94/x
  3. Step 3: Cross multiply
    631,932.60x = 871,969.44 × 359,965.94
  4. Step 4: Simplify right side
    631,932.60x = 313,879,299,120.87
  5. Step 5: Solve for x
    x = 313,879,299,120.87/631,932.60
  6. Step 6: Final answer
    x = 496,697.43

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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.