Home / 396,746.30-547,513.56-215,459.79

Finding the Fourth Proportional to 396,746.30, 547,513.56 and 215,459.79

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Solution

The fourth proportional to 396,746.30, 547,513.56 and 215,459.79 is: 297,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,746.30 : 547,513.56 = 215,459.79 : x
  2. Step 2: Convert to fraction form
    396,746.30/547,513.56 = 215,459.79/x
  3. Step 3: Cross multiply
    396,746.30x = 547,513.56 × 215,459.79
  4. Step 4: Simplify right side
    396,746.30x = 117,967,156,659.75
  5. Step 5: Solve for x
    x = 117,967,156,659.75/396,746.30
  6. Step 6: Final answer
    x = 297,336.50

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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.