Home / 1,455,641.91-2,008,759.05-811,048.23

Finding the Fourth Proportional to 1,455,641.91, 2,008,759.05 and 811,048.23

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Solution

The fourth proportional to 1,455,641.91, 2,008,759.05 and 811,048.23 is: 1,119,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,641.91 : 2,008,759.05 = 811,048.23 : x
  2. Step 2: Convert to fraction form
    1,455,641.91/2,008,759.05 = 811,048.23/x
  3. Step 3: Cross multiply
    1,455,641.91x = 2,008,759.05 × 811,048.23
  4. Step 4: Simplify right side
    1,455,641.91x = 1,629,200,471,998.98
  5. Step 5: Solve for x
    x = 1,629,200,471,998.98/1,455,641.91
  6. Step 6: Final answer
    x = 1,119,231.63

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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.