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Finding the Fourth Proportional to 500,841.78, 751,290.03 and 126,868.02

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Solution

The fourth proportional to 500,841.78, 751,290.03 and 126,868.02 is: 190,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,841.78 : 751,290.03 = 126,868.02 : x
  2. Step 2: Convert to fraction form
    500,841.78/751,290.03 = 126,868.02/x
  3. Step 3: Cross multiply
    500,841.78x = 751,290.03 × 126,868.02
  4. Step 4: Simplify right side
    500,841.78x = 95,314,678,551.84
  5. Step 5: Solve for x
    x = 95,314,678,551.84/500,841.78
  6. Step 6: Final answer
    x = 190,308.96

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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.