Home / 1,315,205.52-1,814,983.68-711,593.52

Finding the Fourth Proportional to 1,315,205.52, 1,814,983.68 and 711,593.52

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Solution

The fourth proportional to 1,315,205.52, 1,814,983.68 and 711,593.52 is: 981,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,205.52 : 1,814,983.68 = 711,593.52 : x
  2. Step 2: Convert to fraction form
    1,315,205.52/1,814,983.68 = 711,593.52/x
  3. Step 3: Cross multiply
    1,315,205.52x = 1,814,983.68 × 711,593.52
  4. Step 4: Simplify right side
    1,315,205.52x = 1,291,530,625,593.75
  5. Step 5: Solve for x
    x = 1,291,530,625,593.75/1,315,205.52
  6. Step 6: Final answer
    x = 981,999.09

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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.