Home / 1,419,972.64-2,128,381.22-1,081,898.69

Finding the Fourth Proportional to 1,419,972.64, 2,128,381.22 and 1,081,898.69

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Solution

The fourth proportional to 1,419,972.64, 2,128,381.22 and 1,081,898.69 is: 1,621,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,972.64 : 2,128,381.22 = 1,081,898.69 : x
  2. Step 2: Convert to fraction form
    1,419,972.64/2,128,381.22 = 1,081,898.69/x
  3. Step 3: Cross multiply
    1,419,972.64x = 2,128,381.22 × 1,081,898.69
  4. Step 4: Simplify right side
    1,419,972.64x = 2,302,692,845,801.44
  5. Step 5: Solve for x
    x = 2,302,692,845,801.44/1,419,972.64
  6. Step 6: Final answer
    x = 1,621,645.93

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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.