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Finding the Fourth Proportional to 669,640.65, 924,110.87 and 363,723

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Solution

The fourth proportional to 669,640.65, 924,110.87 and 363,723 is: 501,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,640.65 : 924,110.87 = 363,723 : x
  2. Step 2: Convert to fraction form
    669,640.65/924,110.87 = 363,723/x
  3. Step 3: Cross multiply
    669,640.65x = 924,110.87 × 363,723
  4. Step 4: Simplify right side
    669,640.65x = 336,120,378,423.66
  5. Step 5: Solve for x
    x = 336,120,378,423.66/669,640.65
  6. Step 6: Final answer
    x = 501,941.42

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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.