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Finding the Fourth Proportional to 568,296.41, 784,250.68 and 310,175.72

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Solution

The fourth proportional to 568,296.41, 784,250.68 and 310,175.72 is: 428,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,296.41 : 784,250.68 = 310,175.72 : x
  2. Step 2: Convert to fraction form
    568,296.41/784,250.68 = 310,175.72/x
  3. Step 3: Cross multiply
    568,296.41x = 784,250.68 × 310,175.72
  4. Step 4: Simplify right side
    568,296.41x = 243,255,519,329.49
  5. Step 5: Solve for x
    x = 243,255,519,329.49/568,296.41
  6. Step 6: Final answer
    x = 428,043.39

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Double scale
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Similar ratio
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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.