Home / 1,180.24-1,770.12-400.07

Finding the Fourth Proportional to 1,180.24, 1,770.12 and 400.07

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Solution

The fourth proportional to 1,180.24, 1,770.12 and 400.07 is: 600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.24 : 1,770.12 = 400.07 : x
  2. Step 2: Convert to fraction form
    1,180.24/1,770.12 = 400.07/x
  3. Step 3: Cross multiply
    1,180.24x = 1,770.12 × 400.07
  4. Step 4: Simplify right side
    1,180.24x = 708,176.33
  5. Step 5: Solve for x
    x = 708,176.33/1,180.24
  6. Step 6: Final answer
    x = 600.03

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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.