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Finding the Fourth Proportional to 894.84, 1,232.88 and 669.76

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Solution

The fourth proportional to 894.84, 1,232.88 and 669.76 is: 922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.84 : 1,232.88 = 669.76 : x
  2. Step 2: Convert to fraction form
    894.84/1,232.88 = 669.76/x
  3. Step 3: Cross multiply
    894.84x = 1,232.88 × 669.76
  4. Step 4: Simplify right side
    894.84x = 825,733.71
  5. Step 5: Solve for x
    x = 825,733.71/894.84
  6. Step 6: Final answer
    x = 922.77

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1.5x scale

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.