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Finding the Fourth Proportional to 529,840.59, 731,199.23 and 303,529.83

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Solution

The fourth proportional to 529,840.59, 731,199.23 and 303,529.83 is: 418,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,840.59 : 731,199.23 = 303,529.83 : x
  2. Step 2: Convert to fraction form
    529,840.59/731,199.23 = 303,529.83/x
  3. Step 3: Cross multiply
    529,840.59x = 731,199.23 × 303,529.83
  4. Step 4: Simplify right side
    529,840.59x = 221,940,777,978.03
  5. Step 5: Solve for x
    x = 221,940,777,978.03/529,840.59
  6. Step 6: Final answer
    x = 418,882.17

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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.