Home / 2,205,989.30-3,043,792.95-1,287,801.74

Finding the Fourth Proportional to 2,205,989.30, 3,043,792.95 and 1,287,801.74

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Solution

The fourth proportional to 2,205,989.30, 3,043,792.95 and 1,287,801.74 is: 1,776,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205,989.30 : 3,043,792.95 = 1,287,801.74 : x
  2. Step 2: Convert to fraction form
    2,205,989.30/3,043,792.95 = 1,287,801.74/x
  3. Step 3: Cross multiply
    2,205,989.30x = 3,043,792.95 × 1,287,801.74
  4. Step 4: Simplify right side
    2,205,989.30x = 3,919,801,857,209.73
  5. Step 5: Solve for x
    x = 3,919,801,857,209.73/2,205,989.30
  6. Step 6: Final answer
    x = 1,776,890.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.