Home / 726,891.77-1,002,995.73-420,996.96

Finding the Fourth Proportional to 726,891.77, 1,002,995.73 and 420,996.96

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Solution

The fourth proportional to 726,891.77, 1,002,995.73 and 420,996.96 is: 580,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,891.77 : 1,002,995.73 = 420,996.96 : x
  2. Step 2: Convert to fraction form
    726,891.77/1,002,995.73 = 420,996.96/x
  3. Step 3: Cross multiply
    726,891.77x = 1,002,995.73 × 420,996.96
  4. Step 4: Simplify right side
    726,891.77x = 422,258,153,222.98
  5. Step 5: Solve for x
    x = 422,258,153,222.98/726,891.77
  6. Step 6: Final answer
    x = 580,909.25

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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.