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Finding the Fourth Proportional to 666,882.24, 920,297.38 and 360,958.53

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Solution

The fourth proportional to 666,882.24, 920,297.38 and 360,958.53 is: 498,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,882.24 : 920,297.38 = 360,958.53 : x
  2. Step 2: Convert to fraction form
    666,882.24/920,297.38 = 360,958.53/x
  3. Step 3: Cross multiply
    666,882.24x = 920,297.38 × 360,958.53
  4. Step 4: Simplify right side
    666,882.24x = 332,189,187,642.86
  5. Step 5: Solve for x
    x = 332,189,187,642.86/666,882.24
  6. Step 6: Final answer
    x = 498,122.71

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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.