Home / 427,246.44-640,906.02-111,702.84

Finding the Fourth Proportional to 427,246.44, 640,906.02 and 111,702.84

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Solution

The fourth proportional to 427,246.44, 640,906.02 and 111,702.84 is: 167,563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,246.44 : 640,906.02 = 111,702.84 : x
  2. Step 2: Convert to fraction form
    427,246.44/640,906.02 = 111,702.84/x
  3. Step 3: Cross multiply
    427,246.44x = 640,906.02 × 111,702.84
  4. Step 4: Simplify right side
    427,246.44x = 71,591,022,607.10
  5. Step 5: Solve for x
    x = 71,591,022,607.10/427,246.44
  6. Step 6: Final answer
    x = 167,563.77

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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.