Home / 396,798.09-547,585.34-215,513.57

Finding the Fourth Proportional to 396,798.09, 547,585.34 and 215,513.57

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Solution

The fourth proportional to 396,798.09, 547,585.34 and 215,513.57 is: 297,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,798.09 : 547,585.34 = 215,513.57 : x
  2. Step 2: Convert to fraction form
    396,798.09/547,585.34 = 215,513.57/x
  3. Step 3: Cross multiply
    396,798.09x = 547,585.34 × 215,513.57
  4. Step 4: Simplify right side
    396,798.09x = 118,012,067,687.57
  5. Step 5: Solve for x
    x = 118,012,067,687.57/396,798.09
  6. Step 6: Final answer
    x = 297,410.88

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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.