Home / 1,276.52-1,914.62-410.60

Finding the Fourth Proportional to 1,276.52, 1,914.62 and 410.60

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Solution

The fourth proportional to 1,276.52, 1,914.62 and 410.60 is: 615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.52 : 1,914.62 = 410.60 : x
  2. Step 2: Convert to fraction form
    1,276.52/1,914.62 = 410.60/x
  3. Step 3: Cross multiply
    1,276.52x = 1,914.62 × 410.60
  4. Step 4: Simplify right side
    1,276.52x = 786,142.97
  5. Step 5: Solve for x
    x = 786,142.97/1,276.52
  6. Step 6: Final answer
    x = 615.85

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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.