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Finding the Fourth Proportional to 631,892.34, 871,798.50 and 359,767.69

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Solution

The fourth proportional to 631,892.34, 871,798.50 and 359,767.69 is: 496,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,892.34 : 871,798.50 = 359,767.69 : x
  2. Step 2: Convert to fraction form
    631,892.34/871,798.50 = 359,767.69/x
  3. Step 3: Cross multiply
    631,892.34x = 871,798.50 × 359,767.69
  4. Step 4: Simplify right side
    631,892.34x = 313,644,932,749.85
  5. Step 5: Solve for x
    x = 313,644,932,749.85/631,892.34
  6. Step 6: Final answer
    x = 496,358.18

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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.