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Finding the Fourth Proportional to 631,365.91, 871,270.64 and 344,887.27

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Solution

The fourth proportional to 631,365.91, 871,270.64 and 344,887.27 is: 475,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,365.91 : 871,270.64 = 344,887.27 : x
  2. Step 2: Convert to fraction form
    631,365.91/871,270.64 = 344,887.27/x
  3. Step 3: Cross multiply
    631,365.91x = 871,270.64 × 344,887.27
  4. Step 4: Simplify right side
    631,365.91x = 300,490,150,736.32
  5. Step 5: Solve for x
    x = 300,490,150,736.32/631,365.91
  6. Step 6: Final answer
    x = 475,936.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.