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Finding the Fourth Proportional to 509,744.40, 764,616.60 and 341,782.80

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Solution

The fourth proportional to 509,744.40, 764,616.60 and 341,782.80 is: 512,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,744.40 : 764,616.60 = 341,782.80 : x
  2. Step 2: Convert to fraction form
    509,744.40/764,616.60 = 341,782.80/x
  3. Step 3: Cross multiply
    509,744.40x = 764,616.60 × 341,782.80
  4. Step 4: Simplify right side
    509,744.40x = 261,332,802,474.48
  5. Step 5: Solve for x
    x = 261,332,802,474.48/509,744.40
  6. Step 6: Final answer
    x = 512,674.20

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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.