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Finding the Fourth Proportional to 751.82, 1,127.79 and 444.02

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Solution

The fourth proportional to 751.82, 1,127.79 and 444.02 is: 666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.82 : 1,127.79 = 444.02 : x
  2. Step 2: Convert to fraction form
    751.82/1,127.79 = 444.02/x
  3. Step 3: Cross multiply
    751.82x = 1,127.79 × 444.02
  4. Step 4: Simplify right side
    751.82x = 500,755.68
  5. Step 5: Solve for x
    x = 500,755.68/751.82
  6. Step 6: Final answer
    x = 666.06

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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.