Home / 1,510,078.92-2,083,909.21-831,015.42

Finding the Fourth Proportional to 1,510,078.92, 2,083,909.21 and 831,015.42

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Solution

The fourth proportional to 1,510,078.92, 2,083,909.21 and 831,015.42 is: 1,146,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,078.92 : 2,083,909.21 = 831,015.42 : x
  2. Step 2: Convert to fraction form
    1,510,078.92/2,083,909.21 = 831,015.42/x
  3. Step 3: Cross multiply
    1,510,078.92x = 2,083,909.21 × 831,015.42
  4. Step 4: Simplify right side
    1,510,078.92x = 1,731,760,682,180.25
  5. Step 5: Solve for x
    x = 1,731,760,682,180.25/1,510,078.92
  6. Step 6: Final answer
    x = 1,146,801.44

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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.