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Finding the Fourth Proportional to 631,243.33, 871,102.32 and 344,764.57

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Solution

The fourth proportional to 631,243.33, 871,102.32 and 344,764.57 is: 475,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,243.33 : 871,102.32 = 344,764.57 : x
  2. Step 2: Convert to fraction form
    631,243.33/871,102.32 = 344,764.57/x
  3. Step 3: Cross multiply
    631,243.33x = 871,102.32 × 344,764.57
  4. Step 4: Simplify right side
    631,243.33x = 300,325,216,780.80
  5. Step 5: Solve for x
    x = 300,325,216,780.80/631,243.33
  6. Step 6: Final answer
    x = 475,767.75

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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.