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Finding the Fourth Proportional to 631,796.05, 871,848.46 and 345,316.37

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Solution

The fourth proportional to 631,796.05, 871,848.46 and 345,316.37 is: 476,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,796.05 : 871,848.46 = 345,316.37 : x
  2. Step 2: Convert to fraction form
    631,796.05/871,848.46 = 345,316.37/x
  3. Step 3: Cross multiply
    631,796.05x = 871,848.46 × 345,316.37
  4. Step 4: Simplify right side
    631,796.05x = 301,063,541,469.69
  5. Step 5: Solve for x
    x = 301,063,541,469.69/631,796.05
  6. Step 6: Final answer
    x = 476,520.14

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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.