Home / 631,381.20-871,324.80-344,906.04

Finding the Fourth Proportional to 631,381.20, 871,324.80 and 344,906.04

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Solution

The fourth proportional to 631,381.20, 871,324.80 and 344,906.04 is: 475,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,381.20 : 871,324.80 = 344,906.04 : x
  2. Step 2: Convert to fraction form
    631,381.20/871,324.80 = 344,906.04/x
  3. Step 3: Cross multiply
    631,381.20x = 871,324.80 × 344,906.04
  4. Step 4: Simplify right side
    631,381.20x = 300,525,186,321.79
  5. Step 5: Solve for x
    x = 300,525,186,321.79/631,381.20
  6. Step 6: Final answer
    x = 475,980.57

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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.