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Finding the Fourth Proportional to 669,338.64, 923,695.25 and 363,418.65

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Solution

The fourth proportional to 669,338.64, 923,695.25 and 363,418.65 is: 501,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,338.64 : 923,695.25 = 363,418.65 : x
  2. Step 2: Convert to fraction form
    669,338.64/923,695.25 = 363,418.65/x
  3. Step 3: Cross multiply
    669,338.64x = 923,695.25 × 363,418.65
  4. Step 4: Simplify right side
    669,338.64x = 335,688,078,949.32
  5. Step 5: Solve for x
    x = 335,688,078,949.32/669,338.64
  6. Step 6: Final answer
    x = 501,522.04

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Double scale
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1.5x scale

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.