Home / 961,133.92-1,439,600.88-487,005.28

Finding the Fourth Proportional to 961,133.92, 1,439,600.88 and 487,005.28

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Solution

The fourth proportional to 961,133.92, 1,439,600.88 and 487,005.28 is: 729,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,133.92 : 1,439,600.88 = 487,005.28 : x
  2. Step 2: Convert to fraction form
    961,133.92/1,439,600.88 = 487,005.28/x
  3. Step 3: Cross multiply
    961,133.92x = 1,439,600.88 × 487,005.28
  4. Step 4: Simplify right side
    961,133.92x = 701,093,229,652.65
  5. Step 5: Solve for x
    x = 701,093,229,652.65/961,133.92
  6. Step 6: Final answer
    x = 729,443.85

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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.