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Finding the Fourth Proportional to 660,296.92, 990,587.40 and 204,879.02

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Solution

The fourth proportional to 660,296.92, 990,587.40 and 204,879.02 is: 307,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,296.92 : 990,587.40 = 204,879.02 : x
  2. Step 2: Convert to fraction form
    660,296.92/990,587.40 = 204,879.02/x
  3. Step 3: Cross multiply
    660,296.92x = 990,587.40 × 204,879.02
  4. Step 4: Simplify right side
    660,296.92x = 202,950,569,759.02
  5. Step 5: Solve for x
    x = 202,950,569,759.02/660,296.92
  6. Step 6: Final answer
    x = 307,362.59

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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.