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Finding the Fourth Proportional to 1,004.84, 1,505.64 and 822.32

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Solution

The fourth proportional to 1,004.84, 1,505.64 and 822.32 is: 1,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.84 : 1,505.64 = 822.32 : x
  2. Step 2: Convert to fraction form
    1,004.84/1,505.64 = 822.32/x
  3. Step 3: Cross multiply
    1,004.84x = 1,505.64 × 822.32
  4. Step 4: Simplify right side
    1,004.84x = 1,238,117.88
  5. Step 5: Solve for x
    x = 1,238,117.88/1,004.84
  6. Step 6: Final answer
    x = 1,232.15

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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.