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Finding the Fourth Proportional to 507,539.17, 761,404.77 and 203,956.96

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Solution

The fourth proportional to 507,539.17, 761,404.77 and 203,956.96 is: 305,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,539.17 : 761,404.77 = 203,956.96 : x
  2. Step 2: Convert to fraction form
    507,539.17/761,404.77 = 203,956.96/x
  3. Step 3: Cross multiply
    507,539.17x = 761,404.77 × 203,956.96
  4. Step 4: Simplify right side
    507,539.17x = 155,293,802,218.70
  5. Step 5: Solve for x
    x = 155,293,802,218.70/507,539.17
  6. Step 6: Final answer
    x = 305,974.02

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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.