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Finding the Fourth Proportional to 631,201.76, 871,059.43 and 359,269.67

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Solution

The fourth proportional to 631,201.76, 871,059.43 and 359,269.67 is: 495,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,201.76 : 871,059.43 = 359,269.67 : x
  2. Step 2: Convert to fraction form
    631,201.76/871,059.43 = 359,269.67/x
  3. Step 3: Cross multiply
    631,201.76x = 871,059.43 × 359,269.67
  4. Step 4: Simplify right side
    631,201.76x = 312,945,234,212.48
  5. Step 5: Solve for x
    x = 312,945,234,212.48/631,201.76
  6. Step 6: Final answer
    x = 495,792.71

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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.