Home / 631,679.13-871,872.12-359,907.39

Finding the Fourth Proportional to 631,679.13, 871,872.12 and 359,907.39

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Solution

The fourth proportional to 631,679.13, 871,872.12 and 359,907.39 is: 496,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,679.13 : 871,872.12 = 359,907.39 : x
  2. Step 2: Convert to fraction form
    631,679.13/871,872.12 = 359,907.39/x
  3. Step 3: Cross multiply
    631,679.13x = 871,872.12 × 359,907.39
  4. Step 4: Simplify right side
    631,679.13x = 313,793,219,122.97
  5. Step 5: Solve for x
    x = 313,793,219,122.97/631,679.13
  6. Step 6: Final answer
    x = 496,760.47

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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.