Home / 726,797.96-1,002,963.49-400,108.32

Finding the Fourth Proportional to 726,797.96, 1,002,963.49 and 400,108.32

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Solution

The fourth proportional to 726,797.96, 1,002,963.49 and 400,108.32 is: 552,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,797.96 : 1,002,963.49 = 400,108.32 : x
  2. Step 2: Convert to fraction form
    726,797.96/1,002,963.49 = 400,108.32/x
  3. Step 3: Cross multiply
    726,797.96x = 1,002,963.49 × 400,108.32
  4. Step 4: Simplify right side
    726,797.96x = 401,294,037,005.24
  5. Step 5: Solve for x
    x = 401,294,037,005.24/726,797.96
  6. Step 6: Final answer
    x = 552,139.74

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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.