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Finding the Fourth Proportional to 568,289.52, 784,243.62 and 310,164.12

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Solution

The fourth proportional to 568,289.52, 784,243.62 and 310,164.12 is: 428,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,289.52 : 784,243.62 = 310,164.12 : x
  2. Step 2: Convert to fraction form
    568,289.52/784,243.62 = 310,164.12/x
  3. Step 3: Cross multiply
    568,289.52x = 784,243.62 × 310,164.12
  4. Step 4: Simplify right side
    568,289.52x = 243,244,232,262.91
  5. Step 5: Solve for x
    x = 243,244,232,262.91/568,289.52
  6. Step 6: Final answer
    x = 428,028.71

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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.