Home / 396,411.06-547,048.69-215,122.93

Finding the Fourth Proportional to 396,411.06, 547,048.69 and 215,122.93

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Solution

The fourth proportional to 396,411.06, 547,048.69 and 215,122.93 is: 296,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,411.06 : 547,048.69 = 215,122.93 : x
  2. Step 2: Convert to fraction form
    396,411.06/547,048.69 = 215,122.93/x
  3. Step 3: Cross multiply
    396,411.06x = 547,048.69 × 215,122.93
  4. Step 4: Simplify right side
    396,411.06x = 117,682,717,045.46
  5. Step 5: Solve for x
    x = 117,682,717,045.46/396,411.06
  6. Step 6: Final answer
    x = 296,870.42

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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.