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Finding the Fourth Proportional to 568,211.70, 784,266.30 and 326,634.42

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Solution

The fourth proportional to 568,211.70, 784,266.30 and 326,634.42 is: 450,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,211.70 : 784,266.30 = 326,634.42 : x
  2. Step 2: Convert to fraction form
    568,211.70/784,266.30 = 326,634.42/x
  3. Step 3: Cross multiply
    568,211.70x = 784,266.30 × 326,634.42
  4. Step 4: Simplify right side
    568,211.70x = 256,168,368,026.05
  5. Step 5: Solve for x
    x = 256,168,368,026.05/568,211.70
  6. Step 6: Final answer
    x = 450,832.62

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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.