Home / 1,000,426.44-1,380,782.79-758,286.66

Finding the Fourth Proportional to 1,000,426.44, 1,380,782.79 and 758,286.66

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Solution

The fourth proportional to 1,000,426.44, 1,380,782.79 and 758,286.66 is: 1,046,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,426.44 : 1,380,782.79 = 758,286.66 : x
  2. Step 2: Convert to fraction form
    1,000,426.44/1,380,782.79 = 758,286.66/x
  3. Step 3: Cross multiply
    1,000,426.44x = 1,380,782.79 × 758,286.66
  4. Step 4: Simplify right side
    1,000,426.44x = 1,047,029,170,014.58
  5. Step 5: Solve for x
    x = 1,047,029,170,014.58/1,000,426.44
  6. Step 6: Final answer
    x = 1,046,582.87

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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.