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Finding the Fourth Proportional to 1,167.95, 1,752.44 and 620.00

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Solution

The fourth proportional to 1,167.95, 1,752.44 and 620.00 is: 930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.95 : 1,752.44 = 620.00 : x
  2. Step 2: Convert to fraction form
    1,167.95/1,752.44 = 620.00/x
  3. Step 3: Cross multiply
    1,167.95x = 1,752.44 × 620.00
  4. Step 4: Simplify right side
    1,167.95x = 1,086,500.94
  5. Step 5: Solve for x
    x = 1,086,500.94/1,167.95
  6. Step 6: Final answer
    x = 930.27

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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.