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Finding the Fourth Proportional to 396,670.68, 547,502.76 and 243,745.92

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Solution

The fourth proportional to 396,670.68, 547,502.76 and 243,745.92 is: 336,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,670.68 : 547,502.76 = 243,745.92 : x
  2. Step 2: Convert to fraction form
    396,670.68/547,502.76 = 243,745.92/x
  3. Step 3: Cross multiply
    396,670.68x = 547,502.76 × 243,745.92
  4. Step 4: Simplify right side
    396,670.68x = 133,451,563,938.74
  5. Step 5: Solve for x
    x = 133,451,563,938.74/396,670.68
  6. Step 6: Final answer
    x = 336,429.11

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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.