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Finding the Fourth Proportional to 605.78, 907.72 and 536.52

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Solution

The fourth proportional to 605.78, 907.72 and 536.52 is: 803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.78 : 907.72 = 536.52 : x
  2. Step 2: Convert to fraction form
    605.78/907.72 = 536.52/x
  3. Step 3: Cross multiply
    605.78x = 907.72 × 536.52
  4. Step 4: Simplify right side
    605.78x = 487,009.93
  5. Step 5: Solve for x
    x = 487,009.93/605.78
  6. Step 6: Final answer
    x = 803.94

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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.