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Finding the Fourth Proportional to 479,662.27, 661,916.58 and 264,797.72

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Solution

The fourth proportional to 479,662.27, 661,916.58 and 264,797.72 is: 365,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,662.27 : 661,916.58 = 264,797.72 : x
  2. Step 2: Convert to fraction form
    479,662.27/661,916.58 = 264,797.72/x
  3. Step 3: Cross multiply
    479,662.27x = 661,916.58 × 264,797.72
  4. Step 4: Simplify right side
    479,662.27x = 175,274,001,214.20
  5. Step 5: Solve for x
    x = 175,274,001,214.20/479,662.27
  6. Step 6: Final answer
    x = 365,411.27

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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.