Home / 726,267.92-1,002,371.36-420,291.59

Finding the Fourth Proportional to 726,267.92, 1,002,371.36 and 420,291.59

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Solution

The fourth proportional to 726,267.92, 1,002,371.36 and 420,291.59 is: 580,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,267.92 : 1,002,371.36 = 420,291.59 : x
  2. Step 2: Convert to fraction form
    726,267.92/1,002,371.36 = 420,291.59/x
  3. Step 3: Cross multiply
    726,267.92x = 1,002,371.36 × 420,291.59
  4. Step 4: Simplify right side
    726,267.92x = 421,288,245,551.55
  5. Step 5: Solve for x
    x = 421,288,245,551.55/726,267.92
  6. Step 6: Final answer
    x = 580,072.77

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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.