Home / 1,992,215.12-2,989,201.08-1,045,357.52

Finding the Fourth Proportional to 1,992,215.12, 2,989,201.08 and 1,045,357.52

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Solution

The fourth proportional to 1,992,215.12, 2,989,201.08 and 1,045,357.52 is: 1,568,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,215.12 : 2,989,201.08 = 1,045,357.52 : x
  2. Step 2: Convert to fraction form
    1,992,215.12/2,989,201.08 = 1,045,357.52/x
  3. Step 3: Cross multiply
    1,992,215.12x = 2,989,201.08 × 1,045,357.52
  4. Step 4: Simplify right side
    1,992,215.12x = 3,124,783,827,770.12
  5. Step 5: Solve for x
    x = 3,124,783,827,770.12/1,992,215.12
  6. Step 6: Final answer
    x = 1,568,497.20

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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.