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Finding the Fourth Proportional to 479,696, 662,058.24 and 278,608.64

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Solution

The fourth proportional to 479,696, 662,058.24 and 278,608.64 is: 384,525.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,696 : 662,058.24 = 278,608.64 : x
  2. Step 2: Convert to fraction form
    479,696/662,058.24 = 278,608.64/x
  3. Step 3: Cross multiply
    479,696x = 662,058.24 × 278,608.64
  4. Step 4: Simplify right side
    479,696x = 184,455,145,847.19
  5. Step 5: Solve for x
    x = 184,455,145,847.19/479,696
  6. Step 6: Final answer
    x = 384,525.09

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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.