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Finding the Fourth Proportional to 486,048.60, 729,072.90 and 276,096.60

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Solution

The fourth proportional to 486,048.60, 729,072.90 and 276,096.60 is: 414,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,048.60 : 729,072.90 = 276,096.60 : x
  2. Step 2: Convert to fraction form
    486,048.60/729,072.90 = 276,096.60/x
  3. Step 3: Cross multiply
    486,048.60x = 729,072.90 × 276,096.60
  4. Step 4: Simplify right side
    486,048.60x = 201,294,548,842.14
  5. Step 5: Solve for x
    x = 201,294,548,842.14/486,048.60
  6. Step 6: Final answer
    x = 414,144.90

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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.