Home / 726,351.68-1,002,360.60-399,684.62

Finding the Fourth Proportional to 726,351.68, 1,002,360.60 and 399,684.62

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Solution

The fourth proportional to 726,351.68, 1,002,360.60 and 399,684.62 is: 551,562.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,351.68 : 1,002,360.60 = 399,684.62 : x
  2. Step 2: Convert to fraction form
    726,351.68/1,002,360.60 = 399,684.62/x
  3. Step 3: Cross multiply
    726,351.68x = 1,002,360.60 × 399,684.62
  4. Step 4: Simplify right side
    726,351.68x = 400,628,118,019.87
  5. Step 5: Solve for x
    x = 400,628,118,019.87/726,351.68
  6. Step 6: Final answer
    x = 551,562.18

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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.