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Finding the Fourth Proportional to 556.17, 768.29 and 433.41

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Solution

The fourth proportional to 556.17, 768.29 and 433.41 is: 598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.17 : 768.29 = 433.41 : x
  2. Step 2: Convert to fraction form
    556.17/768.29 = 433.41/x
  3. Step 3: Cross multiply
    556.17x = 768.29 × 433.41
  4. Step 4: Simplify right side
    556.17x = 332,984.57
  5. Step 5: Solve for x
    x = 332,984.57/556.17
  6. Step 6: Final answer
    x = 598.71

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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.