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Finding the Fourth Proportional to 618,459.87, 925,622.75 and 352,148.91

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Solution

The fourth proportional to 618,459.87, 925,622.75 and 352,148.91 is: 527,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,459.87 : 925,622.75 = 352,148.91 : x
  2. Step 2: Convert to fraction form
    618,459.87/925,622.75 = 352,148.91/x
  3. Step 3: Cross multiply
    618,459.87x = 925,622.75 × 352,148.91
  4. Step 4: Simplify right side
    618,459.87x = 325,957,040,722.96
  5. Step 5: Solve for x
    x = 325,957,040,722.96/618,459.87
  6. Step 6: Final answer
    x = 527,046.39

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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.