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Finding the Fourth Proportional to 500,892.75, 751,382.87 and 126,915.75

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Solution

The fourth proportional to 500,892.75, 751,382.87 and 126,915.75 is: 190,384.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,892.75 : 751,382.87 = 126,915.75 : x
  2. Step 2: Convert to fraction form
    500,892.75/751,382.87 = 126,915.75/x
  3. Step 3: Cross multiply
    500,892.75x = 751,382.87 × 126,915.75
  4. Step 4: Simplify right side
    500,892.75x = 95,362,319,848.62
  5. Step 5: Solve for x
    x = 95,362,319,848.62/500,892.75
  6. Step 6: Final answer
    x = 190,384.71

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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.