Home / 396,382.13-547,004.56-215,089.45

Finding the Fourth Proportional to 396,382.13, 547,004.56 and 215,089.45

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Solution

The fourth proportional to 396,382.13, 547,004.56 and 215,089.45 is: 296,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,382.13 : 547,004.56 = 215,089.45 : x
  2. Step 2: Convert to fraction form
    396,382.13/547,004.56 = 215,089.45/x
  3. Step 3: Cross multiply
    396,382.13x = 547,004.56 × 215,089.45
  4. Step 4: Simplify right side
    396,382.13x = 117,654,909,957.89
  5. Step 5: Solve for x
    x = 117,654,909,957.89/396,382.13
  6. Step 6: Final answer
    x = 296,821.93

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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.