Home / 631,216.48-871,084.30-359,301.88

Finding the Fourth Proportional to 631,216.48, 871,084.30 and 359,301.88

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Solution

The fourth proportional to 631,216.48, 871,084.30 and 359,301.88 is: 495,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,216.48 : 871,084.30 = 359,301.88 : x
  2. Step 2: Convert to fraction form
    631,216.48/871,084.30 = 359,301.88/x
  3. Step 3: Cross multiply
    631,216.48x = 871,084.30 × 359,301.88
  4. Step 4: Simplify right side
    631,216.48x = 312,982,226,628.48
  5. Step 5: Solve for x
    x = 312,982,226,628.48/631,216.48
  6. Step 6: Final answer
    x = 495,839.76

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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.