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Finding the Fourth Proportional to 535,060.31, 738,389.23 and 305,647.97

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Solution

The fourth proportional to 535,060.31, 738,389.23 and 305,647.97 is: 421,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,060.31 : 738,389.23 = 305,647.97 : x
  2. Step 2: Convert to fraction form
    535,060.31/738,389.23 = 305,647.97/x
  3. Step 3: Cross multiply
    535,060.31x = 738,389.23 × 305,647.97
  4. Step 4: Simplify right side
    535,060.31x = 225,687,164,763.30
  5. Step 5: Solve for x
    x = 225,687,164,763.30/535,060.31
  6. Step 6: Final answer
    x = 421,797.62

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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.