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Finding the Fourth Proportional to 631,251.98, 871,127.74 and 344,772.75

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Solution

The fourth proportional to 631,251.98, 871,127.74 and 344,772.75 is: 475,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,251.98 : 871,127.74 = 344,772.75 : x
  2. Step 2: Convert to fraction form
    631,251.98/871,127.74 = 344,772.75/x
  3. Step 3: Cross multiply
    631,251.98x = 871,127.74 × 344,772.75
  4. Step 4: Simplify right side
    631,251.98x = 300,341,109,249.11
  5. Step 5: Solve for x
    x = 300,341,109,249.11/631,251.98
  6. Step 6: Final answer
    x = 475,786.40

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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.