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Finding the Fourth Proportional to 460,693.60, 635,569.90 and 305,717.98

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Solution

The fourth proportional to 460,693.60, 635,569.90 and 305,717.98 is: 421,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,693.60 : 635,569.90 = 305,717.98 : x
  2. Step 2: Convert to fraction form
    460,693.60/635,569.90 = 305,717.98/x
  3. Step 3: Cross multiply
    460,693.60x = 635,569.90 × 305,717.98
  4. Step 4: Simplify right side
    460,693.60x = 194,305,145,976.80
  5. Step 5: Solve for x
    x = 194,305,145,976.80/460,693.60
  6. Step 6: Final answer
    x = 421,766.54

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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.