Home / 1,209,778.92-1,813,448.52-760,820.58

Finding the Fourth Proportional to 1,209,778.92, 1,813,448.52 and 760,820.58

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Solution

The fourth proportional to 1,209,778.92, 1,813,448.52 and 760,820.58 is: 1,140,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,778.92 : 1,813,448.52 = 760,820.58 : x
  2. Step 2: Convert to fraction form
    1,209,778.92/1,813,448.52 = 760,820.58/x
  3. Step 3: Cross multiply
    1,209,778.92x = 1,813,448.52 × 760,820.58
  4. Step 4: Simplify right side
    1,209,778.92x = 1,379,708,954,786.54
  5. Step 5: Solve for x
    x = 1,379,708,954,786.54/1,209,778.92
  6. Step 6: Final answer
    x = 1,140,463.71

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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.