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Finding the Fourth Proportional to 894.66, 1,235.01 and 673.66

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Solution

The fourth proportional to 894.66, 1,235.01 and 673.66 is: 929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.66 : 1,235.01 = 673.66 : x
  2. Step 2: Convert to fraction form
    894.66/1,235.01 = 673.66/x
  3. Step 3: Cross multiply
    894.66x = 1,235.01 × 673.66
  4. Step 4: Simplify right side
    894.66x = 831,976.84
  5. Step 5: Solve for x
    x = 831,976.84/894.66
  6. Step 6: Final answer
    x = 929.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.