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Finding the Fourth Proportional to 509,729.40, 764,594.10 and 341,767.80

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Solution

The fourth proportional to 509,729.40, 764,594.10 and 341,767.80 is: 512,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,729.40 : 764,594.10 = 341,767.80 : x
  2. Step 2: Convert to fraction form
    509,729.40/764,594.10 = 341,767.80/x
  3. Step 3: Cross multiply
    509,729.40x = 764,594.10 × 341,767.80
  4. Step 4: Simplify right side
    509,729.40x = 261,313,643,449.98
  5. Step 5: Solve for x
    x = 261,313,643,449.98/509,729.40
  6. Step 6: Final answer
    x = 512,651.70

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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.