Home / 378,280.12-566,711.70-339,331

Finding the Fourth Proportional to 378,280.12, 566,711.70 and 339,331

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Solution

The fourth proportional to 378,280.12, 566,711.70 and 339,331 is: 508,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,280.12 : 566,711.70 = 339,331 : x
  2. Step 2: Convert to fraction form
    378,280.12/566,711.70 = 339,331/x
  3. Step 3: Cross multiply
    378,280.12x = 566,711.70 × 339,331
  4. Step 4: Simplify right side
    378,280.12x = 192,302,847,872.70
  5. Step 5: Solve for x
    x = 192,302,847,872.70/378,280.12
  6. Step 6: Final answer
    x = 508,360.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.