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Finding the Fourth Proportional to 631,365.66, 871,270.28 and 344,887.02

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Solution

The fourth proportional to 631,365.66, 871,270.28 and 344,887.02 is: 475,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,365.66 : 871,270.28 = 344,887.02 : x
  2. Step 2: Convert to fraction form
    631,365.66/871,270.28 = 344,887.02/x
  3. Step 3: Cross multiply
    631,365.66x = 871,270.28 × 344,887.02
  4. Step 4: Simplify right side
    631,365.66x = 300,489,810,483.77
  5. Step 5: Solve for x
    x = 300,489,810,483.77/631,365.66
  6. Step 6: Final answer
    x = 475,936.26

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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.