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Finding the Fourth Proportional to 631,459.36, 871,410.72 and 344,995.84

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Solution

The fourth proportional to 631,459.36, 871,410.72 and 344,995.84 is: 476,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,459.36 : 871,410.72 = 344,995.84 : x
  2. Step 2: Convert to fraction form
    631,459.36/871,410.72 = 344,995.84/x
  3. Step 3: Cross multiply
    631,459.36x = 871,410.72 × 344,995.84
  4. Step 4: Simplify right side
    631,459.36x = 300,633,073,331.41
  5. Step 5: Solve for x
    x = 300,633,073,331.41/631,459.36
  6. Step 6: Final answer
    x = 476,092.51

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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.