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Finding the Fourth Proportional to 479,473.50, 661,654.10 and 264,610.78

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Solution

The fourth proportional to 479,473.50, 661,654.10 and 264,610.78 is: 365,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,473.50 : 661,654.10 = 264,610.78 : x
  2. Step 2: Convert to fraction form
    479,473.50/661,654.10 = 264,610.78/x
  3. Step 3: Cross multiply
    479,473.50x = 661,654.10 × 264,610.78
  4. Step 4: Simplify right side
    479,473.50x = 175,080,807,491.20
  5. Step 5: Solve for x
    x = 175,080,807,491.20/479,473.50
  6. Step 6: Final answer
    x = 365,152.21

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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.