Home / 660,163.28-988,960.06-486,739.16

Finding the Fourth Proportional to 660,163.28, 988,960.06 and 486,739.16

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Solution

The fourth proportional to 660,163.28, 988,960.06 and 486,739.16 is: 729,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,163.28 : 988,960.06 = 486,739.16 : x
  2. Step 2: Convert to fraction form
    660,163.28/988,960.06 = 486,739.16/x
  3. Step 3: Cross multiply
    660,163.28x = 988,960.06 × 486,739.16
  4. Step 4: Simplify right side
    660,163.28x = 481,365,581,499.45
  5. Step 5: Solve for x
    x = 481,365,581,499.45/660,163.28
  6. Step 6: Final answer
    x = 729,161.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.