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Finding the Fourth Proportional to 509,525.20, 764,287.80 and 322,747.60

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Solution

The fourth proportional to 509,525.20, 764,287.80 and 322,747.60 is: 484,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,525.20 : 764,287.80 = 322,747.60 : x
  2. Step 2: Convert to fraction form
    509,525.20/764,287.80 = 322,747.60/x
  3. Step 3: Cross multiply
    509,525.20x = 764,287.80 × 322,747.60
  4. Step 4: Simplify right side
    509,525.20x = 246,672,053,159.28
  5. Step 5: Solve for x
    x = 246,672,053,159.28/509,525.20
  6. Step 6: Final answer
    x = 484,121.40

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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.