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Finding the Fourth Proportional to 512,593.80, 768,890.70 and 335,646.60

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Solution

The fourth proportional to 512,593.80, 768,890.70 and 335,646.60 is: 503,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,593.80 : 768,890.70 = 335,646.60 : x
  2. Step 2: Convert to fraction form
    512,593.80/768,890.70 = 335,646.60/x
  3. Step 3: Cross multiply
    512,593.80x = 768,890.70 × 335,646.60
  4. Step 4: Simplify right side
    512,593.80x = 258,075,549,226.62
  5. Step 5: Solve for x
    x = 258,075,549,226.62/512,593.80
  6. Step 6: Final answer
    x = 503,469.90

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Similar ratio
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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.