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Finding the Fourth Proportional to 500,499.56, 750,749.34 and 126,522.56

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Solution

The fourth proportional to 500,499.56, 750,749.34 and 126,522.56 is: 189,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,499.56 : 750,749.34 = 126,522.56 : x
  2. Step 2: Convert to fraction form
    500,499.56/750,749.34 = 126,522.56/x
  3. Step 3: Cross multiply
    500,499.56x = 750,749.34 × 126,522.56
  4. Step 4: Simplify right side
    500,499.56x = 94,986,728,415.11
  5. Step 5: Solve for x
    x = 94,986,728,415.11/500,499.56
  6. Step 6: Final answer
    x = 189,783.84

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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.