Home / 2,148,261.28-2,963,761.50-1,229,999.68

Finding the Fourth Proportional to 2,148,261.28, 2,963,761.50 and 1,229,999.68

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Solution

The fourth proportional to 2,148,261.28, 2,963,761.50 and 1,229,999.68 is: 1,696,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148,261.28 : 2,963,761.50 = 1,229,999.68 : x
  2. Step 2: Convert to fraction form
    2,148,261.28/2,963,761.50 = 1,229,999.68/x
  3. Step 3: Cross multiply
    2,148,261.28x = 2,963,761.50 × 1,229,999.68
  4. Step 4: Simplify right side
    2,148,261.28x = 3,645,425,696,596.32
  5. Step 5: Solve for x
    x = 3,645,425,696,596.32/2,148,261.28
  6. Step 6: Final answer
    x = 1,696,919.15

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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.