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Finding the Fourth Proportional to 557,893.60, 769,898.64 and 303,244.63

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Solution

The fourth proportional to 557,893.60, 769,898.64 and 303,244.63 is: 418,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,893.60 : 769,898.64 = 303,244.63 : x
  2. Step 2: Convert to fraction form
    557,893.60/769,898.64 = 303,244.63/x
  3. Step 3: Cross multiply
    557,893.60x = 769,898.64 × 303,244.63
  4. Step 4: Simplify right side
    557,893.60x = 233,467,628,224.30
  5. Step 5: Solve for x
    x = 233,467,628,224.30/557,893.60
  6. Step 6: Final answer
    x = 418,480.56

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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.