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Finding the Fourth Proportional to 631,347.74, 871,227.87 and 344,812.94

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Solution

The fourth proportional to 631,347.74, 871,227.87 and 344,812.94 is: 475,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,347.74 : 871,227.87 = 344,812.94 : x
  2. Step 2: Convert to fraction form
    631,347.74/871,227.87 = 344,812.94/x
  3. Step 3: Cross multiply
    631,347.74x = 871,227.87 × 344,812.94
  4. Step 4: Simplify right side
    631,347.74x = 300,410,643,264.64
  5. Step 5: Solve for x
    x = 300,410,643,264.64/631,347.74
  6. Step 6: Final answer
    x = 475,824.37

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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.