Home / 1,992,866.87-2,989,774.82-645,029.70

Finding the Fourth Proportional to 1,992,866.87, 2,989,774.82 and 645,029.70

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Solution

The fourth proportional to 1,992,866.87, 2,989,774.82 and 645,029.70 is: 967,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,866.87 : 2,989,774.82 = 645,029.70 : x
  2. Step 2: Convert to fraction form
    1,992,866.87/2,989,774.82 = 645,029.70/x
  3. Step 3: Cross multiply
    1,992,866.87x = 2,989,774.82 × 645,029.70
  4. Step 4: Simplify right side
    1,992,866.87x = 1,928,493,551,987.01
  5. Step 5: Solve for x
    x = 1,928,493,551,987.01/1,992,866.87
  6. Step 6: Final answer
    x = 967,698.14

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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.