Home / 1,206.32-1,808.25-475.60

Finding the Fourth Proportional to 1,206.32, 1,808.25 and 475.60

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Solution

The fourth proportional to 1,206.32, 1,808.25 and 475.60 is: 712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.32 : 1,808.25 = 475.60 : x
  2. Step 2: Convert to fraction form
    1,206.32/1,808.25 = 475.60/x
  3. Step 3: Cross multiply
    1,206.32x = 1,808.25 × 475.60
  4. Step 4: Simplify right side
    1,206.32x = 860,003.70
  5. Step 5: Solve for x
    x = 860,003.70/1,206.32
  6. Step 6: Final answer
    x = 712.92

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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.