Home / 631,828.11-871,921.53-359,895.90

Finding the Fourth Proportional to 631,828.11, 871,921.53 and 359,895.90

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Solution

The fourth proportional to 631,828.11, 871,921.53 and 359,895.90 is: 496,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,828.11 : 871,921.53 = 359,895.90 : x
  2. Step 2: Convert to fraction form
    631,828.11/871,921.53 = 359,895.90/x
  3. Step 3: Cross multiply
    631,828.11x = 871,921.53 × 359,895.90
  4. Step 4: Simplify right side
    631,828.11x = 313,800,983,768.73
  5. Step 5: Solve for x
    x = 313,800,983,768.73/631,828.11
  6. Step 6: Final answer
    x = 496,655.62

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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.