Home / 1,333,489.42-1,998,462.66-765,142.80

Finding the Fourth Proportional to 1,333,489.42, 1,998,462.66 and 765,142.80

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Solution

The fourth proportional to 1,333,489.42, 1,998,462.66 and 765,142.80 is: 1,146,697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,489.42 : 1,998,462.66 = 765,142.80 : x
  2. Step 2: Convert to fraction form
    1,333,489.42/1,998,462.66 = 765,142.80/x
  3. Step 3: Cross multiply
    1,333,489.42x = 1,998,462.66 × 765,142.80
  4. Step 4: Simplify right side
    1,333,489.42x = 1,529,109,315,367.85
  5. Step 5: Solve for x
    x = 1,529,109,315,367.85/1,333,489.42
  6. Step 6: Final answer
    x = 1,146,697.75

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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.