Home / 823,858.21-1,235,920.61-255,105.64

Finding the Fourth Proportional to 823,858.21, 1,235,920.61 and 255,105.64

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Solution

The fourth proportional to 823,858.21, 1,235,920.61 and 255,105.64 is: 382,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,858.21 : 1,235,920.61 = 255,105.64 : x
  2. Step 2: Convert to fraction form
    823,858.21/1,235,920.61 = 255,105.64/x
  3. Step 3: Cross multiply
    823,858.21x = 1,235,920.61 × 255,105.64
  4. Step 4: Simplify right side
    823,858.21x = 315,290,320,385.91
  5. Step 5: Solve for x
    x = 315,290,320,385.91/823,858.21
  6. Step 6: Final answer
    x = 382,699.74

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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.