Home / 513,814.04-769,723.68-378,632.75

Finding the Fourth Proportional to 513,814.04, 769,723.68 and 378,632.75

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Solution

The fourth proportional to 513,814.04, 769,723.68 and 378,632.75 is: 567,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,814.04 : 769,723.68 = 378,632.75 : x
  2. Step 2: Convert to fraction form
    513,814.04/769,723.68 = 378,632.75/x
  3. Step 3: Cross multiply
    513,814.04x = 769,723.68 × 378,632.75
  4. Step 4: Simplify right side
    513,814.04x = 291,442,593,698.52
  5. Step 5: Solve for x
    x = 291,442,593,698.52/513,814.04
  6. Step 6: Final answer
    x = 567,214.15

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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.