Home / 2,190,540.20-3,286,986.62-912,030.28

Finding the Fourth Proportional to 2,190,540.20, 3,286,986.62 and 912,030.28

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Solution

The fourth proportional to 2,190,540.20, 3,286,986.62 and 912,030.28 is: 1,368,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,540.20 : 3,286,986.62 = 912,030.28 : x
  2. Step 2: Convert to fraction form
    2,190,540.20/3,286,986.62 = 912,030.28/x
  3. Step 3: Cross multiply
    2,190,540.20x = 3,286,986.62 × 912,030.28
  4. Step 4: Simplify right side
    2,190,540.20x = 2,997,831,327,394.85
  5. Step 5: Solve for x
    x = 2,997,831,327,394.85/2,190,540.20
  6. Step 6: Final answer
    x = 1,368,535.18

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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.