Home / 1,027.69-1,541.55-442.66

Finding the Fourth Proportional to 1,027.69, 1,541.55 and 442.66

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Solution

The fourth proportional to 1,027.69, 1,541.55 and 442.66 is: 663.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.69 : 1,541.55 = 442.66 : x
  2. Step 2: Convert to fraction form
    1,027.69/1,541.55 = 442.66/x
  3. Step 3: Cross multiply
    1,027.69x = 1,541.55 × 442.66
  4. Step 4: Simplify right side
    1,027.69x = 682,372.60
  5. Step 5: Solve for x
    x = 682,372.60/1,027.69
  6. Step 6: Final answer
    x = 663.99

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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.