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Finding the Fourth Proportional to 631,242.33, 871,100.94 and 344,763.57

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Solution

The fourth proportional to 631,242.33, 871,100.94 and 344,763.57 is: 475,766.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,242.33 : 871,100.94 = 344,763.57 : x
  2. Step 2: Convert to fraction form
    631,242.33/871,100.94 = 344,763.57/x
  3. Step 3: Cross multiply
    631,242.33x = 871,100.94 × 344,763.57
  4. Step 4: Simplify right side
    631,242.33x = 300,323,869,904.76
  5. Step 5: Solve for x
    x = 300,323,869,904.76/631,242.33
  6. Step 6: Final answer
    x = 475,766.37

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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.