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Finding the Fourth Proportional to 669.99, 924.65 and 375.29

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Solution

The fourth proportional to 669.99, 924.65 and 375.29 is: 517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.99 : 924.65 = 375.29 : x
  2. Step 2: Convert to fraction form
    669.99/924.65 = 375.29/x
  3. Step 3: Cross multiply
    669.99x = 924.65 × 375.29
  4. Step 4: Simplify right side
    669.99x = 347,007.71
  5. Step 5: Solve for x
    x = 347,007.71/669.99
  6. Step 6: Final answer
    x = 517.93

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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.