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Finding the Fourth Proportional to 631,362.53, 871,247.79 and 344,827.26

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Solution

The fourth proportional to 631,362.53, 871,247.79 and 344,827.26 is: 475,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,362.53 : 871,247.79 = 344,827.26 : x
  2. Step 2: Convert to fraction form
    631,362.53/871,247.79 = 344,827.26/x
  3. Step 3: Cross multiply
    631,362.53x = 871,247.79 × 344,827.26
  4. Step 4: Simplify right side
    631,362.53x = 300,429,988,206.76
  5. Step 5: Solve for x
    x = 300,429,988,206.76/631,362.53
  6. Step 6: Final answer
    x = 475,843.87

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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.