Home / 2,077,845.40-3,116,768.10-1,280,683.90

Finding the Fourth Proportional to 2,077,845.40, 3,116,768.10 and 1,280,683.90

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Solution

The fourth proportional to 2,077,845.40, 3,116,768.10 and 1,280,683.90 is: 1,921,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,845.40 : 3,116,768.10 = 1,280,683.90 : x
  2. Step 2: Convert to fraction form
    2,077,845.40/3,116,768.10 = 1,280,683.90/x
  3. Step 3: Cross multiply
    2,077,845.40x = 3,116,768.10 × 1,280,683.90
  4. Step 4: Simplify right side
    2,077,845.40x = 3,991,594,725,703.59
  5. Step 5: Solve for x
    x = 3,991,594,725,703.59/2,077,845.40
  6. Step 6: Final answer
    x = 1,921,025.85

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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.