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Finding the Fourth Proportional to 496,957.54, 685,782.66 and 303,688.42

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Solution

The fourth proportional to 496,957.54, 685,782.66 and 303,688.42 is: 419,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,957.54 : 685,782.66 = 303,688.42 : x
  2. Step 2: Convert to fraction form
    496,957.54/685,782.66 = 303,688.42/x
  3. Step 3: Cross multiply
    496,957.54x = 685,782.66 × 303,688.42
  4. Step 4: Simplify right side
    496,957.54x = 208,264,252,478.80
  5. Step 5: Solve for x
    x = 208,264,252,478.80/496,957.54
  6. Step 6: Final answer
    x = 419,078.56

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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.