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Finding the Fourth Proportional to 501,120.38, 751,724.37 and 127,143.38

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Solution

The fourth proportional to 501,120.38, 751,724.37 and 127,143.38 is: 190,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,120.38 : 751,724.37 = 127,143.38 : x
  2. Step 2: Convert to fraction form
    501,120.38/751,724.37 = 127,143.38/x
  3. Step 3: Cross multiply
    501,120.38x = 751,724.37 × 127,143.38
  4. Step 4: Simplify right side
    501,120.38x = 95,576,773,471.55
  5. Step 5: Solve for x
    x = 95,576,773,471.55/501,120.38
  6. Step 6: Final answer
    x = 190,726.18

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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.