Home / 1,992,022.80-2,989,589.40-927,196.80

Finding the Fourth Proportional to 1,992,022.80, 2,989,589.40 and 927,196.80

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Solution

The fourth proportional to 1,992,022.80, 2,989,589.40 and 927,196.80 is: 1,391,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,022.80 : 2,989,589.40 = 927,196.80 : x
  2. Step 2: Convert to fraction form
    1,992,022.80/2,989,589.40 = 927,196.80/x
  3. Step 3: Cross multiply
    1,992,022.80x = 2,989,589.40 × 927,196.80
  4. Step 4: Simplify right side
    1,992,022.80x = 2,771,937,724,993.92
  5. Step 5: Solve for x
    x = 2,771,937,724,993.92/1,992,022.80
  6. Step 6: Final answer
    x = 1,391,519.08

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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.