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Finding the Fourth Proportional to 669,329.58, 923,669.70 and 363,399.93

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Solution

The fourth proportional to 669,329.58, 923,669.70 and 363,399.93 is: 501,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,329.58 : 923,669.70 = 363,399.93 : x
  2. Step 2: Convert to fraction form
    669,329.58/923,669.70 = 363,399.93/x
  3. Step 3: Cross multiply
    669,329.58x = 923,669.70 × 363,399.93
  4. Step 4: Simplify right side
    669,329.58x = 335,661,504,323.12
  5. Step 5: Solve for x
    x = 335,661,504,323.12/669,329.58
  6. Step 6: Final answer
    x = 501,489.12

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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.