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Finding the Fourth Proportional to 507,573.73, 761,456.72 and 203,991.47

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Solution

The fourth proportional to 507,573.73, 761,456.72 and 203,991.47 is: 306,025.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,573.73 : 761,456.72 = 203,991.47 : x
  2. Step 2: Convert to fraction form
    507,573.73/761,456.72 = 203,991.47/x
  3. Step 3: Cross multiply
    507,573.73x = 761,456.72 × 203,991.47
  4. Step 4: Simplify right side
    507,573.73x = 155,330,674,634.22
  5. Step 5: Solve for x
    x = 155,330,674,634.22/507,573.73
  6. Step 6: Final answer
    x = 306,025.84

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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.