Home / 1,266.04-1,899.60-616.78

Finding the Fourth Proportional to 1,266.04, 1,899.60 and 616.78

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Solution

The fourth proportional to 1,266.04, 1,899.60 and 616.78 is: 925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.04 : 1,899.60 = 616.78 : x
  2. Step 2: Convert to fraction form
    1,266.04/1,899.60 = 616.78/x
  3. Step 3: Cross multiply
    1,266.04x = 1,899.60 × 616.78
  4. Step 4: Simplify right side
    1,266.04x = 1,171,635.29
  5. Step 5: Solve for x
    x = 1,171,635.29/1,266.04
  6. Step 6: Final answer
    x = 925.43

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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.