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Finding the Fourth Proportional to 509,549.80, 764,324.70 and 367,832.20

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Solution

The fourth proportional to 509,549.80, 764,324.70 and 367,832.20 is: 551,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,549.80 : 764,324.70 = 367,832.20 : x
  2. Step 2: Convert to fraction form
    509,549.80/764,324.70 = 367,832.20/x
  3. Step 3: Cross multiply
    509,549.80x = 764,324.70 × 367,832.20
  4. Step 4: Simplify right side
    509,549.80x = 281,143,235,915.34
  5. Step 5: Solve for x
    x = 281,143,235,915.34/509,549.80
  6. Step 6: Final answer
    x = 551,748.30

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Double scale
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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.