Home / 2,085,429.30-3,128,143.95-1,637,531.70

Finding the Fourth Proportional to 2,085,429.30, 3,128,143.95 and 1,637,531.70

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Solution

The fourth proportional to 2,085,429.30, 3,128,143.95 and 1,637,531.70 is: 2,456,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,429.30 : 3,128,143.95 = 1,637,531.70 : x
  2. Step 2: Convert to fraction form
    2,085,429.30/3,128,143.95 = 1,637,531.70/x
  3. Step 3: Cross multiply
    2,085,429.30x = 3,128,143.95 × 1,637,531.70
  4. Step 4: Simplify right side
    2,085,429.30x = 5,122,434,880,288.22
  5. Step 5: Solve for x
    x = 5,122,434,880,288.22/2,085,429.30
  6. Step 6: Final answer
    x = 2,456,297.55

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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.