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Finding the Fourth Proportional to 631,202.76, 871,060.81 and 359,270.67

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Solution

The fourth proportional to 631,202.76, 871,060.81 and 359,270.67 is: 495,794.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,202.76 : 871,060.81 = 359,270.67 : x
  2. Step 2: Convert to fraction form
    631,202.76/871,060.81 = 359,270.67/x
  3. Step 3: Cross multiply
    631,202.76x = 871,060.81 × 359,270.67
  4. Step 4: Simplify right side
    631,202.76x = 312,946,600,819.44
  5. Step 5: Solve for x
    x = 312,946,600,819.44/631,202.76
  6. Step 6: Final answer
    x = 495,794.09

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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.