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Finding the Fourth Proportional to 568,332.99, 784,243.69 and 313,667.78

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Solution

The fourth proportional to 568,332.99, 784,243.69 and 313,667.78 is: 432,830.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,332.99 : 784,243.69 = 313,667.78 : x
  2. Step 2: Convert to fraction form
    568,332.99/784,243.69 = 313,667.78/x
  3. Step 3: Cross multiply
    568,332.99x = 784,243.69 × 313,667.78
  4. Step 4: Simplify right side
    568,332.99x = 245,991,972,515.92
  5. Step 5: Solve for x
    x = 245,991,972,515.92/568,332.99
  6. Step 6: Final answer
    x = 432,830.71

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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.