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Finding the Fourth Proportional to 496,649.72, 685,379.64 and 270,297.56

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Solution

The fourth proportional to 496,649.72, 685,379.64 and 270,297.56 is: 373,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,649.72 : 685,379.64 = 270,297.56 : x
  2. Step 2: Convert to fraction form
    496,649.72/685,379.64 = 270,297.56/x
  3. Step 3: Cross multiply
    496,649.72x = 685,379.64 × 270,297.56
  4. Step 4: Simplify right side
    496,649.72x = 185,256,444,365.68
  5. Step 5: Solve for x
    x = 185,256,444,365.68/496,649.72
  6. Step 6: Final answer
    x = 373,012.28

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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.