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Finding the Fourth Proportional to 396,412.04, 547,048.96 and 215,123.96

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Solution

The fourth proportional to 396,412.04, 547,048.96 and 215,123.96 is: 296,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,412.04 : 547,048.96 = 215,123.96 : x
  2. Step 2: Convert to fraction form
    396,412.04/547,048.96 = 215,123.96/x
  3. Step 3: Cross multiply
    396,412.04x = 547,048.96 × 215,123.96
  4. Step 4: Simplify right side
    396,412.04x = 117,683,338,589.08
  5. Step 5: Solve for x
    x = 117,683,338,589.08/396,412.04
  6. Step 6: Final answer
    x = 296,871.25

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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.