Home / 396,943.64-547,788.42-215,659.16

Finding the Fourth Proportional to 396,943.64, 547,788.42 and 215,659.16

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Solution

The fourth proportional to 396,943.64, 547,788.42 and 215,659.16 is: 297,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,943.64 : 547,788.42 = 215,659.16 : x
  2. Step 2: Convert to fraction form
    396,943.64/547,788.42 = 215,659.16/x
  3. Step 3: Cross multiply
    396,943.64x = 547,788.42 × 215,659.16
  4. Step 4: Simplify right side
    396,943.64x = 118,135,590,514.93
  5. Step 5: Solve for x
    x = 118,135,590,514.93/396,943.64
  6. Step 6: Final answer
    x = 297,613.01

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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.