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Finding the Fourth Proportional to 574.14, 865.93 and 555.67

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Solution

The fourth proportional to 574.14, 865.93 and 555.67 is: 838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.14 : 865.93 = 555.67 : x
  2. Step 2: Convert to fraction form
    574.14/865.93 = 555.67/x
  3. Step 3: Cross multiply
    574.14x = 865.93 × 555.67
  4. Step 4: Simplify right side
    574.14x = 481,171.32
  5. Step 5: Solve for x
    x = 481,171.32/574.14
  6. Step 6: Final answer
    x = 838.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.