Home / 1,992,986.20-2,989,479.30-930,104.20

Finding the Fourth Proportional to 1,992,986.20, 2,989,479.30 and 930,104.20

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Solution

The fourth proportional to 1,992,986.20, 2,989,479.30 and 930,104.20 is: 1,395,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,986.20 : 2,989,479.30 = 930,104.20 : x
  2. Step 2: Convert to fraction form
    1,992,986.20/2,989,479.30 = 930,104.20/x
  3. Step 3: Cross multiply
    1,992,986.20x = 2,989,479.30 × 930,104.20
  4. Step 4: Simplify right side
    1,992,986.20x = 2,780,527,252,743.06
  5. Step 5: Solve for x
    x = 2,780,527,252,743.06/1,992,986.20
  6. Step 6: Final answer
    x = 1,395,156.30

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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.