Home / 1,286,942.72-1,776,064.96-743,101.44

Finding the Fourth Proportional to 1,286,942.72, 1,776,064.96 and 743,101.44

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Solution

The fourth proportional to 1,286,942.72, 1,776,064.96 and 743,101.44 is: 1,025,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,942.72 : 1,776,064.96 = 743,101.44 : x
  2. Step 2: Convert to fraction form
    1,286,942.72/1,776,064.96 = 743,101.44/x
  3. Step 3: Cross multiply
    1,286,942.72x = 1,776,064.96 × 743,101.44
  4. Step 4: Simplify right side
    1,286,942.72x = 1,319,796,429,309.54
  5. Step 5: Solve for x
    x = 1,319,796,429,309.54/1,286,942.72
  6. Step 6: Final answer
    x = 1,025,528.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.