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Finding the Fourth Proportional to 500,697.56, 751,046.88 and 126,720.56

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Solution

The fourth proportional to 500,697.56, 751,046.88 and 126,720.56 is: 190,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,697.56 : 751,046.88 = 126,720.56 : x
  2. Step 2: Convert to fraction form
    500,697.56/751,046.88 = 126,720.56/x
  3. Step 3: Cross multiply
    500,697.56x = 751,046.88 × 126,720.56
  4. Step 4: Simplify right side
    500,697.56x = 95,173,081,219.85
  5. Step 5: Solve for x
    x = 95,173,081,219.85/500,697.56
  6. Step 6: Final answer
    x = 190,080.98

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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.