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Finding the Fourth Proportional to 568,331.73, 784,285.81 and 310,200.12

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Solution

The fourth proportional to 568,331.73, 784,285.81 and 310,200.12 is: 428,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,331.73 : 784,285.81 = 310,200.12 : x
  2. Step 2: Convert to fraction form
    568,331.73/784,285.81 = 310,200.12/x
  3. Step 3: Cross multiply
    568,331.73x = 784,285.81 × 310,200.12
  4. Step 4: Simplify right side
    568,331.73x = 243,285,551,600.80
  5. Step 5: Solve for x
    x = 243,285,551,600.80/568,331.73
  6. Step 6: Final answer
    x = 428,069.63

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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.