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Finding the Fourth Proportional to 500,480.56, 750,720.84 and 126,503.56

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Solution

The fourth proportional to 500,480.56, 750,720.84 and 126,503.56 is: 189,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,480.56 : 750,720.84 = 126,503.56 : x
  2. Step 2: Convert to fraction form
    500,480.56/750,720.84 = 126,503.56/x
  3. Step 3: Cross multiply
    500,480.56x = 750,720.84 × 126,503.56
  4. Step 4: Simplify right side
    500,480.56x = 94,968,858,826.19
  5. Step 5: Solve for x
    x = 94,968,858,826.19/500,480.56
  6. Step 6: Final answer
    x = 189,755.34

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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.