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Finding the Fourth Proportional to 568,724.40, 784,834.56 and 310,600.08

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Solution

The fourth proportional to 568,724.40, 784,834.56 and 310,600.08 is: 428,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,724.40 : 784,834.56 = 310,600.08 : x
  2. Step 2: Convert to fraction form
    568,724.40/784,834.56 = 310,600.08/x
  3. Step 3: Cross multiply
    568,724.40x = 784,834.56 × 310,600.08
  4. Step 4: Simplify right side
    568,724.40x = 243,769,677,122.77
  5. Step 5: Solve for x
    x = 243,769,677,122.77/568,724.40
  6. Step 6: Final answer
    x = 428,625.32

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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.