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Finding the Fourth Proportional to 568,219.28, 784,161.44 and 310,110.36

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Solution

The fourth proportional to 568,219.28, 784,161.44 and 310,110.36 is: 427,962.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,219.28 : 784,161.44 = 310,110.36 : x
  2. Step 2: Convert to fraction form
    568,219.28/784,161.44 = 310,110.36/x
  3. Step 3: Cross multiply
    568,219.28x = 784,161.44 × 310,110.36
  4. Step 4: Simplify right side
    568,219.28x = 243,176,586,456.52
  5. Step 5: Solve for x
    x = 243,176,586,456.52/568,219.28
  6. Step 6: Final answer
    x = 427,962.58

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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.