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Finding the Fourth Proportional to 669,080.79, 923,329.19 and 363,157.16

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Solution

The fourth proportional to 669,080.79, 923,329.19 and 363,157.16 is: 501,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,080.79 : 923,329.19 = 363,157.16 : x
  2. Step 2: Convert to fraction form
    669,080.79/923,329.19 = 363,157.16/x
  3. Step 3: Cross multiply
    669,080.79x = 923,329.19 × 363,157.16
  4. Step 4: Simplify right side
    669,080.79x = 335,313,606,385.50
  5. Step 5: Solve for x
    x = 335,313,606,385.50/669,080.79
  6. Step 6: Final answer
    x = 501,155.63

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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.