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Finding the Fourth Proportional to 631,304.72, 871,161.72 and 344,766.68

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Solution

The fourth proportional to 631,304.72, 871,161.72 and 344,766.68 is: 475,756.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,304.72 : 871,161.72 = 344,766.68 : x
  2. Step 2: Convert to fraction form
    631,304.72/871,161.72 = 344,766.68/x
  3. Step 3: Cross multiply
    631,304.72x = 871,161.72 × 344,766.68
  4. Step 4: Simplify right side
    631,304.72x = 300,347,533,947.49
  5. Step 5: Solve for x
    x = 300,347,533,947.49/631,304.72
  6. Step 6: Final answer
    x = 475,756.83

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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.