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Finding the Fourth Proportional to 478,738.92, 660,651.81 and 263,898.97

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Solution

The fourth proportional to 478,738.92, 660,651.81 and 263,898.97 is: 364,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,738.92 : 660,651.81 = 263,898.97 : x
  2. Step 2: Convert to fraction form
    478,738.92/660,651.81 = 263,898.97/x
  3. Step 3: Cross multiply
    478,738.92x = 660,651.81 × 263,898.97
  4. Step 4: Simplify right side
    478,738.92x = 174,345,332,187.64
  5. Step 5: Solve for x
    x = 174,345,332,187.64/478,738.92
  6. Step 6: Final answer
    x = 364,176.22

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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.