Home / 1,005,489.94-1,508,321.03-285,834.36

Finding the Fourth Proportional to 1,005,489.94, 1,508,321.03 and 285,834.36

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Solution

The fourth proportional to 1,005,489.94, 1,508,321.03 and 285,834.36 is: 428,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,489.94 : 1,508,321.03 = 285,834.36 : x
  2. Step 2: Convert to fraction form
    1,005,489.94/1,508,321.03 = 285,834.36/x
  3. Step 3: Cross multiply
    1,005,489.94x = 1,508,321.03 × 285,834.36
  4. Step 4: Simplify right side
    1,005,489.94x = 431,129,976,284.59
  5. Step 5: Solve for x
    x = 431,129,976,284.59/1,005,489.94
  6. Step 6: Final answer
    x = 428,776.02

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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.