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Finding the Fourth Proportional to 670.30, 924.48 and 408.04

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Solution

The fourth proportional to 670.30, 924.48 and 408.04 is: 562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.30 : 924.48 = 408.04 : x
  2. Step 2: Convert to fraction form
    670.30/924.48 = 408.04/x
  3. Step 3: Cross multiply
    670.30x = 924.48 × 408.04
  4. Step 4: Simplify right side
    670.30x = 377,224.82
  5. Step 5: Solve for x
    x = 377,224.82/670.30
  6. Step 6: Final answer
    x = 562.77

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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.