Home / 394,267.87-544,089.24-212,979.76

Finding the Fourth Proportional to 394,267.87, 544,089.24 and 212,979.76

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Solution

The fourth proportional to 394,267.87, 544,089.24 and 212,979.76 is: 293,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,267.87 : 544,089.24 = 212,979.76 : x
  2. Step 2: Convert to fraction form
    394,267.87/544,089.24 = 212,979.76/x
  3. Step 3: Cross multiply
    394,267.87x = 544,089.24 × 212,979.76
  4. Step 4: Simplify right side
    394,267.87x = 115,879,995,753.78
  5. Step 5: Solve for x
    x = 115,879,995,753.78/394,267.87
  6. Step 6: Final answer
    x = 293,911.84

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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.