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Finding the Fourth Proportional to 529,897.73, 731,243.20 and 300,475.96

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Solution

The fourth proportional to 529,897.73, 731,243.20 and 300,475.96 is: 414,647.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,897.73 : 731,243.20 = 300,475.96 : x
  2. Step 2: Convert to fraction form
    529,897.73/731,243.20 = 300,475.96/x
  3. Step 3: Cross multiply
    529,897.73x = 731,243.20 × 300,475.96
  4. Step 4: Simplify right side
    529,897.73x = 219,721,002,513.47
  5. Step 5: Solve for x
    x = 219,721,002,513.47/529,897.73
  6. Step 6: Final answer
    x = 414,647.94

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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.