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Finding the Fourth Proportional to 496,512.99, 685,238.40 and 292,629.60

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Solution

The fourth proportional to 496,512.99, 685,238.40 and 292,629.60 is: 403,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,512.99 : 685,238.40 = 292,629.60 : x
  2. Step 2: Convert to fraction form
    496,512.99/685,238.40 = 292,629.60/x
  3. Step 3: Cross multiply
    496,512.99x = 685,238.40 × 292,629.60
  4. Step 4: Simplify right side
    496,512.99x = 200,521,038,896.64
  5. Step 5: Solve for x
    x = 200,521,038,896.64/496,512.99
  6. Step 6: Final answer
    x = 403,858.60

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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.