Home / 400,719.96-552,993.48-219,431.88

Finding the Fourth Proportional to 400,719.96, 552,993.48 and 219,431.88

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Solution

The fourth proportional to 400,719.96, 552,993.48 and 219,431.88 is: 302,815.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,719.96 : 552,993.48 = 219,431.88 : x
  2. Step 2: Convert to fraction form
    400,719.96/552,993.48 = 219,431.88/x
  3. Step 3: Cross multiply
    400,719.96x = 552,993.48 × 219,431.88
  4. Step 4: Simplify right side
    400,719.96x = 121,344,398,944.14
  5. Step 5: Solve for x
    x = 121,344,398,944.14/400,719.96
  6. Step 6: Final answer
    x = 302,815.96

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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.