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Finding the Fourth Proportional to 631,506.42, 871,433.37 and 344,965.68

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Solution

The fourth proportional to 631,506.42, 871,433.37 and 344,965.68 is: 476,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,506.42 : 871,433.37 = 344,965.68 : x
  2. Step 2: Convert to fraction form
    631,506.42/871,433.37 = 344,965.68/x
  3. Step 3: Cross multiply
    631,506.42x = 871,433.37 × 344,965.68
  4. Step 4: Simplify right side
    631,506.42x = 300,614,605,056.74
  5. Step 5: Solve for x
    x = 300,614,605,056.74/631,506.42
  6. Step 6: Final answer
    x = 476,027.79

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Double scale
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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.