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Finding the Fourth Proportional to 669.02, 924.09 and 606.65

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Solution

The fourth proportional to 669.02, 924.09 and 606.65 is: 837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.02 : 924.09 = 606.65 : x
  2. Step 2: Convert to fraction form
    669.02/924.09 = 606.65/x
  3. Step 3: Cross multiply
    669.02x = 924.09 × 606.65
  4. Step 4: Simplify right side
    669.02x = 560,599.20
  5. Step 5: Solve for x
    x = 560,599.20/669.02
  6. Step 6: Final answer
    x = 837.94

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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.