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Finding the Fourth Proportional to 568,357.36, 784,329.38 and 310,233.27

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Solution

The fourth proportional to 568,357.36, 784,329.38 and 310,233.27 is: 428,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,357.36 : 784,329.38 = 310,233.27 : x
  2. Step 2: Convert to fraction form
    568,357.36/784,329.38 = 310,233.27/x
  3. Step 3: Cross multiply
    568,357.36x = 784,329.38 × 310,233.27
  4. Step 4: Simplify right side
    568,357.36x = 243,325,070,867.92
  5. Step 5: Solve for x
    x = 243,325,070,867.92/568,357.36
  6. Step 6: Final answer
    x = 428,119.86

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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.