Home / 2,131,435.80-3,194,432.10-867,835.80

Finding the Fourth Proportional to 2,131,435.80, 3,194,432.10 and 867,835.80

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Solution

The fourth proportional to 2,131,435.80, 3,194,432.10 and 867,835.80 is: 1,300,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,435.80 : 3,194,432.10 = 867,835.80 : x
  2. Step 2: Convert to fraction form
    2,131,435.80/3,194,432.10 = 867,835.80/x
  3. Step 3: Cross multiply
    2,131,435.80x = 3,194,432.10 × 867,835.80
  4. Step 4: Simplify right side
    2,131,435.80x = 2,772,242,537,049.18
  5. Step 5: Solve for x
    x = 2,772,242,537,049.18/2,131,435.80
  6. Step 6: Final answer
    x = 1,300,645.57

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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.