Home / 396,887.03-547,707.99-215,600.42

Finding the Fourth Proportional to 396,887.03, 547,707.99 and 215,600.42

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Solution

The fourth proportional to 396,887.03, 547,707.99 and 215,600.42 is: 297,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,887.03 : 547,707.99 = 215,600.42 : x
  2. Step 2: Convert to fraction form
    396,887.03/547,707.99 = 215,600.42/x
  3. Step 3: Cross multiply
    396,887.03x = 547,707.99 × 215,600.42
  4. Step 4: Simplify right side
    396,887.03x = 118,086,072,681.36
  5. Step 5: Solve for x
    x = 118,086,072,681.36/396,887.03
  6. Step 6: Final answer
    x = 297,530.69

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1.5x scale

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.