Home / 726,112.37-1,002,059.76-399,439.77

Finding the Fourth Proportional to 726,112.37, 1,002,059.76 and 399,439.77

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Solution

The fourth proportional to 726,112.37, 1,002,059.76 and 399,439.77 is: 551,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,112.37 : 1,002,059.76 = 399,439.77 : x
  2. Step 2: Convert to fraction form
    726,112.37/1,002,059.76 = 399,439.77/x
  3. Step 3: Cross multiply
    726,112.37x = 1,002,059.76 × 399,439.77
  4. Step 4: Simplify right side
    726,112.37x = 400,262,520,060.66
  5. Step 5: Solve for x
    x = 400,262,520,060.66/726,112.37
  6. Step 6: Final answer
    x = 551,240.47

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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.