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Finding the Fourth Proportional to 618,458.62, 925,620.87 and 352,147.66

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Solution

The fourth proportional to 618,458.62, 925,620.87 and 352,147.66 is: 527,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,458.62 : 925,620.87 = 352,147.66 : x
  2. Step 2: Convert to fraction form
    618,458.62/925,620.87 = 352,147.66/x
  3. Step 3: Cross multiply
    618,458.62x = 925,620.87 × 352,147.66
  4. Step 4: Simplify right side
    618,458.62x = 325,955,223,417.66
  5. Step 5: Solve for x
    x = 325,955,223,417.66/618,458.62
  6. Step 6: Final answer
    x = 527,044.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.