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Finding the Fourth Proportional to 479,656.21, 661,908.22 and 264,791.66

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Solution

The fourth proportional to 479,656.21, 661,908.22 and 264,791.66 is: 365,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,656.21 : 661,908.22 = 264,791.66 : x
  2. Step 2: Convert to fraction form
    479,656.21/661,908.22 = 264,791.66/x
  3. Step 3: Cross multiply
    479,656.21x = 661,908.22 × 264,791.66
  4. Step 4: Simplify right side
    479,656.21x = 175,267,776,341.45
  5. Step 5: Solve for x
    x = 175,267,776,341.45/479,656.21
  6. Step 6: Final answer
    x = 365,402.91

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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.