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Finding the Fourth Proportional to 608.24, 907.47 and 531.09

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Solution

The fourth proportional to 608.24, 907.47 and 531.09 is: 792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.24 : 907.47 = 531.09 : x
  2. Step 2: Convert to fraction form
    608.24/907.47 = 531.09/x
  3. Step 3: Cross multiply
    608.24x = 907.47 × 531.09
  4. Step 4: Simplify right side
    608.24x = 481,948.24
  5. Step 5: Solve for x
    x = 481,948.24/608.24
  6. Step 6: Final answer
    x = 792.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.