Home / 726,479.48-1,002,516.44-399,761.96

Finding the Fourth Proportional to 726,479.48, 1,002,516.44 and 399,761.96

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Solution

The fourth proportional to 726,479.48, 1,002,516.44 and 399,761.96 is: 551,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,479.48 : 1,002,516.44 = 399,761.96 : x
  2. Step 2: Convert to fraction form
    726,479.48/1,002,516.44 = 399,761.96/x
  3. Step 3: Cross multiply
    726,479.48x = 1,002,516.44 × 399,761.96
  4. Step 4: Simplify right side
    726,479.48x = 400,767,936,986.62
  5. Step 5: Solve for x
    x = 400,767,936,986.62/726,479.48
  6. Step 6: Final answer
    x = 551,657.61

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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.