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Finding the Fourth Proportional to 512,213.80, 768,320.70 and 335,266.60

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Solution

The fourth proportional to 512,213.80, 768,320.70 and 335,266.60 is: 502,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,213.80 : 768,320.70 = 335,266.60 : x
  2. Step 2: Convert to fraction form
    512,213.80/768,320.70 = 335,266.60/x
  3. Step 3: Cross multiply
    512,213.80x = 768,320.70 × 335,266.60
  4. Step 4: Simplify right side
    512,213.80x = 257,592,268,798.62
  5. Step 5: Solve for x
    x = 257,592,268,798.62/512,213.80
  6. Step 6: Final answer
    x = 502,899.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.