Home / 2,085,411.20-3,128,116.80-887,372.60

Finding the Fourth Proportional to 2,085,411.20, 3,128,116.80 and 887,372.60

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Solution

The fourth proportional to 2,085,411.20, 3,128,116.80 and 887,372.60 is: 1,331,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,411.20 : 3,128,116.80 = 887,372.60 : x
  2. Step 2: Convert to fraction form
    2,085,411.20/3,128,116.80 = 887,372.60/x
  3. Step 3: Cross multiply
    2,085,411.20x = 3,128,116.80 × 887,372.60
  4. Step 4: Simplify right side
    2,085,411.20x = 2,775,805,137,919.68
  5. Step 5: Solve for x
    x = 2,775,805,137,919.68/2,085,411.20
  6. Step 6: Final answer
    x = 1,331,058.90

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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.