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Finding the Fourth Proportional to 631,242.36, 871,100.96 and 344,763.56

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Solution

The fourth proportional to 631,242.36, 871,100.96 and 344,763.56 is: 475,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,242.36 : 871,100.96 = 344,763.56 : x
  2. Step 2: Convert to fraction form
    631,242.36/871,100.96 = 344,763.56/x
  3. Step 3: Cross multiply
    631,242.36x = 871,100.96 × 344,763.56
  4. Step 4: Simplify right side
    631,242.36x = 300,323,868,089.02
  5. Step 5: Solve for x
    x = 300,323,868,089.02/631,242.36
  6. Step 6: Final answer
    x = 475,766.34

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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.