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Finding the Fourth Proportional to 632.16, 947.04 and 436.56

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Solution

The fourth proportional to 632.16, 947.04 and 436.56 is: 654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.16 : 947.04 = 436.56 : x
  2. Step 2: Convert to fraction form
    632.16/947.04 = 436.56/x
  3. Step 3: Cross multiply
    632.16x = 947.04 × 436.56
  4. Step 4: Simplify right side
    632.16x = 413,439.78
  5. Step 5: Solve for x
    x = 413,439.78/632.16
  6. Step 6: Final answer
    x = 654.01

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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.