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Finding the Fourth Proportional to 702,082.21, 968,872.32 and 379,791.31

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Solution

The fourth proportional to 702,082.21, 968,872.32 and 379,791.31 is: 524,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,082.21 : 968,872.32 = 379,791.31 : x
  2. Step 2: Convert to fraction form
    702,082.21/968,872.32 = 379,791.31/x
  3. Step 3: Cross multiply
    702,082.21x = 968,872.32 × 379,791.31
  4. Step 4: Simplify right side
    702,082.21x = 367,969,287,635.54
  5. Step 5: Solve for x
    x = 367,969,287,635.54/702,082.21
  6. Step 6: Final answer
    x = 524,111.40

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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.