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Finding the Fourth Proportional to 407,894.02, 610,530.88 and 217,879.26

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Solution

The fourth proportional to 407,894.02, 610,530.88 and 217,879.26 is: 326,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,894.02 : 610,530.88 = 217,879.26 : x
  2. Step 2: Convert to fraction form
    407,894.02/610,530.88 = 217,879.26/x
  3. Step 3: Cross multiply
    407,894.02x = 610,530.88 × 217,879.26
  4. Step 4: Simplify right side
    407,894.02x = 133,022,015,796.85
  5. Step 5: Solve for x
    x = 133,022,015,796.85/407,894.02
  6. Step 6: Final answer
    x = 326,119.07

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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.