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Finding the Fourth Proportional to 500,480.06, 750,720.09 and 126,503.06

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Solution

The fourth proportional to 500,480.06, 750,720.09 and 126,503.06 is: 189,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,480.06 : 750,720.09 = 126,503.06 : x
  2. Step 2: Convert to fraction form
    500,480.06/750,720.09 = 126,503.06/x
  3. Step 3: Cross multiply
    500,480.06x = 750,720.09 × 126,503.06
  4. Step 4: Simplify right side
    500,480.06x = 94,968,388,588.48
  5. Step 5: Solve for x
    x = 94,968,388,588.48/500,480.06
  6. Step 6: Final answer
    x = 189,754.59

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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.