Home / 400,682.08-552,939.24-219,390.72

Finding the Fourth Proportional to 400,682.08, 552,939.24 and 219,390.72

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Solution

The fourth proportional to 400,682.08, 552,939.24 and 219,390.72 is: 302,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,682.08 : 552,939.24 = 219,390.72 : x
  2. Step 2: Convert to fraction form
    400,682.08/552,939.24 = 219,390.72/x
  3. Step 3: Cross multiply
    400,682.08x = 552,939.24 × 219,390.72
  4. Step 4: Simplify right side
    400,682.08x = 121,309,737,979.85
  5. Step 5: Solve for x
    x = 121,309,737,979.85/400,682.08
  6. Step 6: Final answer
    x = 302,758.08

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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.