Home / 381,939.87-571,827.24-317,379.63

Finding the Fourth Proportional to 381,939.87, 571,827.24 and 317,379.63

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Solution

The fourth proportional to 381,939.87, 571,827.24 and 317,379.63 is: 475,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,939.87 : 571,827.24 = 317,379.63 : x
  2. Step 2: Convert to fraction form
    381,939.87/571,827.24 = 317,379.63/x
  3. Step 3: Cross multiply
    381,939.87x = 571,827.24 × 317,379.63
  4. Step 4: Simplify right side
    381,939.87x = 181,486,317,855.12
  5. Step 5: Solve for x
    x = 181,486,317,855.12/381,939.87
  6. Step 6: Final answer
    x = 475,169.87

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1.5x scale

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.