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Finding the Fourth Proportional to 670.56, 924.49 and 550.49

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Solution

The fourth proportional to 670.56, 924.49 and 550.49 is: 758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.56 : 924.49 = 550.49 : x
  2. Step 2: Convert to fraction form
    670.56/924.49 = 550.49/x
  3. Step 3: Cross multiply
    670.56x = 924.49 × 550.49
  4. Step 4: Simplify right side
    670.56x = 508,915.47
  5. Step 5: Solve for x
    x = 508,915.47/670.56
  6. Step 6: Final answer
    x = 758.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.