Home / 1,221,787.32-1,831,100.19-682,030.25

Finding the Fourth Proportional to 1,221,787.32, 1,831,100.19 and 682,030.25

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Solution

The fourth proportional to 1,221,787.32, 1,831,100.19 and 682,030.25 is: 1,022,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,787.32 : 1,831,100.19 = 682,030.25 : x
  2. Step 2: Convert to fraction form
    1,221,787.32/1,831,100.19 = 682,030.25/x
  3. Step 3: Cross multiply
    1,221,787.32x = 1,831,100.19 × 682,030.25
  4. Step 4: Simplify right side
    1,221,787.32x = 1,248,865,720,360.75
  5. Step 5: Solve for x
    x = 1,248,865,720,360.75/1,221,787.32
  6. Step 6: Final answer
    x = 1,022,162.94

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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.