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Finding the Fourth Proportional to 631,297.45, 871,184.73 and 344,817.46

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Solution

The fourth proportional to 631,297.45, 871,184.73 and 344,817.46 is: 475,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,297.45 : 871,184.73 = 344,817.46 : x
  2. Step 2: Convert to fraction form
    631,297.45/871,184.73 = 344,817.46/x
  3. Step 3: Cross multiply
    631,297.45x = 871,184.73 × 344,817.46
  4. Step 4: Simplify right side
    631,297.45x = 300,399,705,789.39
  5. Step 5: Solve for x
    x = 300,399,705,789.39/631,297.45
  6. Step 6: Final answer
    x = 475,844.95

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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.