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Finding the Fourth Proportional to 556.07, 834.11 and 434.43

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Solution

The fourth proportional to 556.07, 834.11 and 434.43 is: 651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.07 : 834.11 = 434.43 : x
  2. Step 2: Convert to fraction form
    556.07/834.11 = 434.43/x
  3. Step 3: Cross multiply
    556.07x = 834.11 × 434.43
  4. Step 4: Simplify right side
    556.07x = 362,360.24
  5. Step 5: Solve for x
    x = 362,360.24/556.07
  6. Step 6: Final answer
    x = 651.65

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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.