Home / 724,288.80-1,086,001.20-444,007.20

Finding the Fourth Proportional to 724,288.80, 1,086,001.20 and 444,007.20

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Solution

The fourth proportional to 724,288.80, 1,086,001.20 and 444,007.20 is: 665,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,288.80 : 1,086,001.20 = 444,007.20 : x
  2. Step 2: Convert to fraction form
    724,288.80/1,086,001.20 = 444,007.20/x
  3. Step 3: Cross multiply
    724,288.80x = 1,086,001.20 × 444,007.20
  4. Step 4: Simplify right side
    724,288.80x = 482,192,352,008.64
  5. Step 5: Solve for x
    x = 482,192,352,008.64/724,288.80
  6. Step 6: Final answer
    x = 665,745.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.