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Finding the Fourth Proportional to 561,376.09, 775,042.23 and 365,329.36

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Solution

The fourth proportional to 561,376.09, 775,042.23 and 365,329.36 is: 504,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,376.09 : 775,042.23 = 365,329.36 : x
  2. Step 2: Convert to fraction form
    561,376.09/775,042.23 = 365,329.36/x
  3. Step 3: Cross multiply
    561,376.09x = 775,042.23 × 365,329.36
  4. Step 4: Simplify right side
    561,376.09x = 283,145,681,858.87
  5. Step 5: Solve for x
    x = 283,145,681,858.87/561,376.09
  6. Step 6: Final answer
    x = 504,377.88

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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.