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Finding the Fourth Proportional to 479,554.86, 661,801.73 and 261,776.44

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Solution

The fourth proportional to 479,554.86, 661,801.73 and 261,776.44 is: 361,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,554.86 : 661,801.73 = 261,776.44 : x
  2. Step 2: Convert to fraction form
    479,554.86/661,801.73 = 261,776.44/x
  3. Step 3: Cross multiply
    479,554.86x = 661,801.73 × 261,776.44
  4. Step 4: Simplify right side
    479,554.86x = 173,244,100,865.24
  5. Step 5: Solve for x
    x = 173,244,100,865.24/479,554.86
  6. Step 6: Final answer
    x = 361,260.23

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1.5x scale

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.