Home / 2,085,405.10-3,128,107.65-739,087.90

Finding the Fourth Proportional to 2,085,405.10, 3,128,107.65 and 739,087.90

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Solution

The fourth proportional to 2,085,405.10, 3,128,107.65 and 739,087.90 is: 1,108,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,405.10 : 3,128,107.65 = 739,087.90 : x
  2. Step 2: Convert to fraction form
    2,085,405.10/3,128,107.65 = 739,087.90/x
  3. Step 3: Cross multiply
    2,085,405.10x = 3,128,107.65 × 739,087.90
  4. Step 4: Simplify right side
    2,085,405.10x = 2,311,946,514,012.44
  5. Step 5: Solve for x
    x = 2,311,946,514,012.44/2,085,405.10
  6. Step 6: Final answer
    x = 1,108,631.85

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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.