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Finding the Fourth Proportional to 394,608.61, 544,707.97 and 258,651.32

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Solution

The fourth proportional to 394,608.61, 544,707.97 and 258,651.32 is: 357,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,608.61 : 544,707.97 = 258,651.32 : x
  2. Step 2: Convert to fraction form
    394,608.61/544,707.97 = 258,651.32/x
  3. Step 3: Cross multiply
    394,608.61x = 544,707.97 × 258,651.32
  4. Step 4: Simplify right side
    394,608.61x = 140,889,435,455.02
  5. Step 5: Solve for x
    x = 140,889,435,455.02/394,608.61
  6. Step 6: Final answer
    x = 357,035.89

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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.