Home / 2,085,445.74-3,128,223.30-665,500.44

Finding the Fourth Proportional to 2,085,445.74, 3,128,223.30 and 665,500.44

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Solution

The fourth proportional to 2,085,445.74, 3,128,223.30 and 665,500.44 is: 998,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,445.74 : 3,128,223.30 = 665,500.44 : x
  2. Step 2: Convert to fraction form
    2,085,445.74/3,128,223.30 = 665,500.44/x
  3. Step 3: Cross multiply
    2,085,445.74x = 3,128,223.30 × 665,500.44
  4. Step 4: Simplify right side
    2,085,445.74x = 2,081,833,982,568.25
  5. Step 5: Solve for x
    x = 2,081,833,982,568.25/2,085,445.74
  6. Step 6: Final answer
    x = 998,268.11

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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.