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Finding the Fourth Proportional to 894.24, 1,233.12 and 632.16

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Solution

The fourth proportional to 894.24, 1,233.12 and 632.16 is: 871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.24 : 1,233.12 = 632.16 : x
  2. Step 2: Convert to fraction form
    894.24/1,233.12 = 632.16/x
  3. Step 3: Cross multiply
    894.24x = 1,233.12 × 632.16
  4. Step 4: Simplify right side
    894.24x = 779,529.14
  5. Step 5: Solve for x
    x = 779,529.14/894.24
  6. Step 6: Final answer
    x = 871.72

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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.