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Finding the Fourth Proportional to 669,305.84, 923,636.93 and 363,376.15

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Solution

The fourth proportional to 669,305.84, 923,636.93 and 363,376.15 is: 501,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,305.84 : 923,636.93 = 363,376.15 : x
  2. Step 2: Convert to fraction form
    669,305.84/923,636.93 = 363,376.15/x
  3. Step 3: Cross multiply
    669,305.84x = 923,636.93 × 363,376.15
  4. Step 4: Simplify right side
    669,305.84x = 335,627,631,621.22
  5. Step 5: Solve for x
    x = 335,627,631,621.22/669,305.84
  6. Step 6: Final answer
    x = 501,456.30

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Double scale
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Similar ratio
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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.