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Finding the Fourth Proportional to 824.85, 1,232.49 and 695.25

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Solution

The fourth proportional to 824.85, 1,232.49 and 695.25 is: 1,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.85 : 1,232.49 = 695.25 : x
  2. Step 2: Convert to fraction form
    824.85/1,232.49 = 695.25/x
  3. Step 3: Cross multiply
    824.85x = 1,232.49 × 695.25
  4. Step 4: Simplify right side
    824.85x = 856,888.67
  5. Step 5: Solve for x
    x = 856,888.67/824.85
  6. Step 6: Final answer
    x = 1,038.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.