Home / 1,212,337.80-1,822,005.90-1,191,342.60

Finding the Fourth Proportional to 1,212,337.80, 1,822,005.90 and 1,191,342.60

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Solution

The fourth proportional to 1,212,337.80, 1,822,005.90 and 1,191,342.60 is: 1,790,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,337.80 : 1,822,005.90 = 1,191,342.60 : x
  2. Step 2: Convert to fraction form
    1,212,337.80/1,822,005.90 = 1,191,342.60/x
  3. Step 3: Cross multiply
    1,212,337.80x = 1,822,005.90 × 1,191,342.60
  4. Step 4: Simplify right side
    1,212,337.80x = 2,170,633,246,121.34
  5. Step 5: Solve for x
    x = 2,170,633,246,121.34/1,212,337.80
  6. Step 6: Final answer
    x = 1,790,452.50

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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.