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Finding the Fourth Proportional to 534,495.17, 737,615.21 and 305,047.89

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Solution

The fourth proportional to 534,495.17, 737,615.21 and 305,047.89 is: 420,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,495.17 : 737,615.21 = 305,047.89 : x
  2. Step 2: Convert to fraction form
    534,495.17/737,615.21 = 305,047.89/x
  3. Step 3: Cross multiply
    534,495.17x = 737,615.21 × 305,047.89
  4. Step 4: Simplify right side
    534,495.17x = 225,007,961,917.17
  5. Step 5: Solve for x
    x = 225,007,961,917.17/534,495.17
  6. Step 6: Final answer
    x = 420,972.87

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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.