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Finding the Fourth Proportional to 631,361.16, 871,264.08 and 344,882.52

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Solution

The fourth proportional to 631,361.16, 871,264.08 and 344,882.52 is: 475,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,361.16 : 871,264.08 = 344,882.52 : x
  2. Step 2: Convert to fraction form
    631,361.16/871,264.08 = 344,882.52/x
  3. Step 3: Cross multiply
    631,361.16x = 871,264.08 × 344,882.52
  4. Step 4: Simplify right side
    631,361.16x = 300,483,751,495.88
  5. Step 5: Solve for x
    x = 300,483,751,495.88/631,361.16
  6. Step 6: Final answer
    x = 475,930.05

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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.