Home / 631,448.49-871,439.13-359,540.13

Finding the Fourth Proportional to 631,448.49, 871,439.13 and 359,540.13

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Solution

The fourth proportional to 631,448.49, 871,439.13 and 359,540.13 is: 496,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,448.49 : 871,439.13 = 359,540.13 : x
  2. Step 2: Convert to fraction form
    631,448.49/871,439.13 = 359,540.13/x
  3. Step 3: Cross multiply
    631,448.49x = 871,439.13 × 359,540.13
  4. Step 4: Simplify right side
    631,448.49x = 313,317,338,087.29
  5. Step 5: Solve for x
    x = 313,317,338,087.29/631,448.49
  6. Step 6: Final answer
    x = 496,188.28

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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.