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Finding the Fourth Proportional to 479,680.63, 661,941.92 and 264,816.11

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Solution

The fourth proportional to 479,680.63, 661,941.92 and 264,816.11 is: 365,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,680.63 : 661,941.92 = 264,816.11 : x
  2. Step 2: Convert to fraction form
    479,680.63/661,941.92 = 264,816.11/x
  3. Step 3: Cross multiply
    479,680.63x = 661,941.92 × 264,816.11
  4. Step 4: Simplify right side
    479,680.63x = 175,292,886,617.23
  5. Step 5: Solve for x
    x = 175,292,886,617.23/479,680.63
  6. Step 6: Final answer
    x = 365,436.66

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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.