Home / 905,380.20-1,356,741-455,482.68

Finding the Fourth Proportional to 905,380.20, 1,356,741 and 455,482.68

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Solution

The fourth proportional to 905,380.20, 1,356,741 and 455,482.68 is: 682,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,380.20 : 1,356,741 = 455,482.68 : x
  2. Step 2: Convert to fraction form
    905,380.20/1,356,741 = 455,482.68/x
  3. Step 3: Cross multiply
    905,380.20x = 1,356,741 × 455,482.68
  4. Step 4: Simplify right side
    905,380.20x = 617,972,026,745.88
  5. Step 5: Solve for x
    x = 617,972,026,745.88/905,380.20
  6. Step 6: Final answer
    x = 682,555.27

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Double scale
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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.