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Finding the Fourth Proportional to 500,785.78, 751,206.04 and 126,812.02

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Solution

The fourth proportional to 500,785.78, 751,206.04 and 126,812.02 is: 190,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,785.78 : 751,206.04 = 126,812.02 : x
  2. Step 2: Convert to fraction form
    500,785.78/751,206.04 = 126,812.02/x
  3. Step 3: Cross multiply
    500,785.78x = 751,206.04 × 126,812.02
  4. Step 4: Simplify right side
    500,785.78x = 95,261,955,368.60
  5. Step 5: Solve for x
    x = 95,261,955,368.60/500,785.78
  6. Step 6: Final answer
    x = 190,224.96

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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.