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Finding the Fourth Proportional to 556.46, 833.77 and 393.34

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Solution

The fourth proportional to 556.46, 833.77 and 393.34 is: 589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.46 : 833.77 = 393.34 : x
  2. Step 2: Convert to fraction form
    556.46/833.77 = 393.34/x
  3. Step 3: Cross multiply
    556.46x = 833.77 × 393.34
  4. Step 4: Simplify right side
    556.46x = 327,955.09
  5. Step 5: Solve for x
    x = 327,955.09/556.46
  6. Step 6: Final answer
    x = 589.36

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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.