Home / 409,923.20-565,608-248,863.04

Finding the Fourth Proportional to 409,923.20, 565,608 and 248,863.04

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Solution

The fourth proportional to 409,923.20, 565,608 and 248,863.04 is: 343,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,923.20 : 565,608 = 248,863.04 : x
  2. Step 2: Convert to fraction form
    409,923.20/565,608 = 248,863.04/x
  3. Step 3: Cross multiply
    409,923.20x = 565,608 × 248,863.04
  4. Step 4: Simplify right side
    409,923.20x = 140,758,926,328.32
  5. Step 5: Solve for x
    x = 140,758,926,328.32/409,923.20
  6. Step 6: Final answer
    x = 343,378.78

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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.