Home / 2,015,215.40-3,020,198.70-816,156.20

Finding the Fourth Proportional to 2,015,215.40, 3,020,198.70 and 816,156.20

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Solution

The fourth proportional to 2,015,215.40, 3,020,198.70 and 816,156.20 is: 1,223,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,215.40 : 3,020,198.70 = 816,156.20 : x
  2. Step 2: Convert to fraction form
    2,015,215.40/3,020,198.70 = 816,156.20/x
  3. Step 3: Cross multiply
    2,015,215.40x = 3,020,198.70 × 816,156.20
  4. Step 4: Simplify right side
    2,015,215.40x = 2,464,953,894,236.94
  5. Step 5: Solve for x
    x = 2,464,953,894,236.94/2,015,215.40
  6. Step 6: Final answer
    x = 1,223,171.43

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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.