Home / 807,745.20-1,211,180.40-333,895.20

Finding the Fourth Proportional to 807,745.20, 1,211,180.40 and 333,895.20

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Solution

The fourth proportional to 807,745.20, 1,211,180.40 and 333,895.20 is: 500,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,745.20 : 1,211,180.40 = 333,895.20 : x
  2. Step 2: Convert to fraction form
    807,745.20/1,211,180.40 = 333,895.20/x
  3. Step 3: Cross multiply
    807,745.20x = 1,211,180.40 × 333,895.20
  4. Step 4: Simplify right side
    807,745.20x = 404,407,321,894.08
  5. Step 5: Solve for x
    x = 404,407,321,894.08/807,745.20
  6. Step 6: Final answer
    x = 500,661.99

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1.5x scale

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.