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Finding the Fourth Proportional to 631,783.20, 871,760.03 and 359,856.41

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Solution

The fourth proportional to 631,783.20, 871,760.03 and 359,856.41 is: 496,544.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,783.20 : 871,760.03 = 359,856.41 : x
  2. Step 2: Convert to fraction form
    631,783.20/871,760.03 = 359,856.41/x
  3. Step 3: Cross multiply
    631,783.20x = 871,760.03 × 359,856.41
  4. Step 4: Simplify right side
    631,783.20x = 313,708,428,619.21
  5. Step 5: Solve for x
    x = 313,708,428,619.21/631,783.20
  6. Step 6: Final answer
    x = 496,544.43

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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.