Home / 1,270.35-1,904.23-539.46

Finding the Fourth Proportional to 1,270.35, 1,904.23 and 539.46

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Solution

The fourth proportional to 1,270.35, 1,904.23 and 539.46 is: 808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.35 : 1,904.23 = 539.46 : x
  2. Step 2: Convert to fraction form
    1,270.35/1,904.23 = 539.46/x
  3. Step 3: Cross multiply
    1,270.35x = 1,904.23 × 539.46
  4. Step 4: Simplify right side
    1,270.35x = 1,027,255.92
  5. Step 5: Solve for x
    x = 1,027,255.92/1,270.35
  6. Step 6: Final answer
    x = 808.64

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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.