Home / 1,992,883.92-2,989,800.54-645,046.75

Finding the Fourth Proportional to 1,992,883.92, 2,989,800.54 and 645,046.75

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Solution

The fourth proportional to 1,992,883.92, 2,989,800.54 and 645,046.75 is: 967,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,883.92 : 2,989,800.54 = 645,046.75 : x
  2. Step 2: Convert to fraction form
    1,992,883.92/2,989,800.54 = 645,046.75/x
  3. Step 3: Cross multiply
    1,992,883.92x = 2,989,800.54 × 645,046.75
  4. Step 4: Simplify right side
    1,992,883.92x = 1,928,561,118,250.01
  5. Step 5: Solve for x
    x = 1,928,561,118,250.01/1,992,883.92
  6. Step 6: Final answer
    x = 967,723.76

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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.