Home / 463,376.20-639,269.10-281,942.68

Finding the Fourth Proportional to 463,376.20, 639,269.10 and 281,942.68

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Solution

The fourth proportional to 463,376.20, 639,269.10 and 281,942.68 is: 388,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,376.20 : 639,269.10 = 281,942.68 : x
  2. Step 2: Convert to fraction form
    463,376.20/639,269.10 = 281,942.68/x
  3. Step 3: Cross multiply
    463,376.20x = 639,269.10 × 281,942.68
  4. Step 4: Simplify right side
    463,376.20x = 180,237,243,295.19
  5. Step 5: Solve for x
    x = 180,237,243,295.19/463,376.20
  6. Step 6: Final answer
    x = 388,965.26

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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.