Home / 1,288,648.68-1,933,039.72-329,113.22

Finding the Fourth Proportional to 1,288,648.68, 1,933,039.72 and 329,113.22

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Solution

The fourth proportional to 1,288,648.68, 1,933,039.72 and 329,113.22 is: 493,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,648.68 : 1,933,039.72 = 329,113.22 : x
  2. Step 2: Convert to fraction form
    1,288,648.68/1,933,039.72 = 329,113.22/x
  3. Step 3: Cross multiply
    1,288,648.68x = 1,933,039.72 × 329,113.22
  4. Step 4: Simplify right side
    1,288,648.68x = 636,188,926,637.10
  5. Step 5: Solve for x
    x = 636,188,926,637.10/1,288,648.68
  6. Step 6: Final answer
    x = 493,686.86

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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.