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Finding the Fourth Proportional to 605.69, 907.01 and 550.20

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Solution

The fourth proportional to 605.69, 907.01 and 550.20 is: 823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.69 : 907.01 = 550.20 : x
  2. Step 2: Convert to fraction form
    605.69/907.01 = 550.20/x
  3. Step 3: Cross multiply
    605.69x = 907.01 × 550.20
  4. Step 4: Simplify right side
    605.69x = 499,036.90
  5. Step 5: Solve for x
    x = 499,036.90/605.69
  6. Step 6: Final answer
    x = 823.91

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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.