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Finding the Fourth Proportional to 500,907.36, 691,244.64 and 274,553.28

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Solution

The fourth proportional to 500,907.36, 691,244.64 and 274,553.28 is: 378,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,907.36 : 691,244.64 = 274,553.28 : x
  2. Step 2: Convert to fraction form
    500,907.36/691,244.64 = 274,553.28/x
  3. Step 3: Cross multiply
    500,907.36x = 691,244.64 × 274,553.28
  4. Step 4: Simplify right side
    500,907.36x = 189,783,483,194.42
  5. Step 5: Solve for x
    x = 189,783,483,194.42/500,907.36
  6. Step 6: Final answer
    x = 378,879.41

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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.