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Finding the Fourth Proportional to 528,410.25, 792,148.81 and 404,305.29

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Solution

The fourth proportional to 528,410.25, 792,148.81 and 404,305.29 is: 606,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,410.25 : 792,148.81 = 404,305.29 : x
  2. Step 2: Convert to fraction form
    528,410.25/792,148.81 = 404,305.29/x
  3. Step 3: Cross multiply
    528,410.25x = 792,148.81 × 404,305.29
  4. Step 4: Simplify right side
    528,410.25x = 320,269,948,367.93
  5. Step 5: Solve for x
    x = 320,269,948,367.93/528,410.25
  6. Step 6: Final answer
    x = 606,100.94

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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.