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Finding the Fourth Proportional to 489,837.73, 735,036.42 and 190,279.33

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Solution

The fourth proportional to 489,837.73, 735,036.42 and 190,279.33 is: 285,527.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,837.73 : 735,036.42 = 190,279.33 : x
  2. Step 2: Convert to fraction form
    489,837.73/735,036.42 = 190,279.33/x
  3. Step 3: Cross multiply
    489,837.73x = 735,036.42 × 190,279.33
  4. Step 4: Simplify right side
    489,837.73x = 139,862,236,399.16
  5. Step 5: Solve for x
    x = 139,862,236,399.16/489,837.73
  6. Step 6: Final answer
    x = 285,527.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.