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Finding the Fourth Proportional to 574,398.09, 861,596.73 and 258,485.94

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Solution

The fourth proportional to 574,398.09, 861,596.73 and 258,485.94 is: 387,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,398.09 : 861,596.73 = 258,485.94 : x
  2. Step 2: Convert to fraction form
    574,398.09/861,596.73 = 258,485.94/x
  3. Step 3: Cross multiply
    574,398.09x = 861,596.73 × 258,485.94
  4. Step 4: Simplify right side
    574,398.09x = 222,710,640,654.98
  5. Step 5: Solve for x
    x = 222,710,640,654.98/574,398.09
  6. Step 6: Final answer
    x = 387,728.73

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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.