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Finding the Fourth Proportional to 574,383.96, 792,894.90 and 408,918.60

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Solution

The fourth proportional to 574,383.96, 792,894.90 and 408,918.60 is: 564,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,383.96 : 792,894.90 = 408,918.60 : x
  2. Step 2: Convert to fraction form
    574,383.96/792,894.90 = 408,918.60/x
  3. Step 3: Cross multiply
    574,383.96x = 792,894.90 × 408,918.60
  4. Step 4: Simplify right side
    574,383.96x = 324,229,472,455.14
  5. Step 5: Solve for x
    x = 324,229,472,455.14/574,383.96
  6. Step 6: Final answer
    x = 564,482.11

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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.