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Finding the Fourth Proportional to 631,296.45, 871,183.35 and 344,816.46

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Solution

The fourth proportional to 631,296.45, 871,183.35 and 344,816.46 is: 475,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,296.45 : 871,183.35 = 344,816.46 : x
  2. Step 2: Convert to fraction form
    631,296.45/871,183.35 = 344,816.46/x
  3. Step 3: Cross multiply
    631,296.45x = 871,183.35 × 344,816.46
  4. Step 4: Simplify right side
    631,296.45x = 300,398,358,757.94
  5. Step 5: Solve for x
    x = 300,398,358,757.94/631,296.45
  6. Step 6: Final answer
    x = 475,843.57

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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.