Home / 2,142,622.80-3,211,691.28-722,187.84

Finding the Fourth Proportional to 2,142,622.80, 3,211,691.28 and 722,187.84

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Solution

The fourth proportional to 2,142,622.80, 3,211,691.28 and 722,187.84 is: 1,082,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,622.80 : 3,211,691.28 = 722,187.84 : x
  2. Step 2: Convert to fraction form
    2,142,622.80/3,211,691.28 = 722,187.84/x
  3. Step 3: Cross multiply
    2,142,622.80x = 3,211,691.28 × 722,187.84
  4. Step 4: Simplify right side
    2,142,622.80x = 2,319,444,388,250.04
  5. Step 5: Solve for x
    x = 2,319,444,388,250.04/2,142,622.80
  6. Step 6: Final answer
    x = 1,082,525.77

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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.