Home / 1,126,911.96-1,690,429.62-285,471

Finding the Fourth Proportional to 1,126,911.96, 1,690,429.62 and 285,471

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Solution

The fourth proportional to 1,126,911.96, 1,690,429.62 and 285,471 is: 428,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,911.96 : 1,690,429.62 = 285,471 : x
  2. Step 2: Convert to fraction form
    1,126,911.96/1,690,429.62 = 285,471/x
  3. Step 3: Cross multiply
    1,126,911.96x = 1,690,429.62 × 285,471
  4. Step 4: Simplify right side
    1,126,911.96x = 482,568,634,051.02
  5. Step 5: Solve for x
    x = 482,568,634,051.02/1,126,911.96
  6. Step 6: Final answer
    x = 428,222.12

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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.