Home / 1,887,076.40-2,831,781-765,155.12

Finding the Fourth Proportional to 1,887,076.40, 2,831,781 and 765,155.12

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Solution

The fourth proportional to 1,887,076.40, 2,831,781 and 765,155.12 is: 1,148,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,076.40 : 2,831,781 = 765,155.12 : x
  2. Step 2: Convert to fraction form
    1,887,076.40/2,831,781 = 765,155.12/x
  3. Step 3: Cross multiply
    1,887,076.40x = 2,831,781 × 765,155.12
  4. Step 4: Simplify right side
    1,887,076.40x = 2,166,751,730,868.72
  5. Step 5: Solve for x
    x = 2,166,751,730,868.72/1,887,076.40
  6. Step 6: Final answer
    x = 1,148,205.62

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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.