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Finding the Fourth Proportional to 439,424.52, 606,410.61 and 258,144.09

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Solution

The fourth proportional to 439,424.52, 606,410.61 and 258,144.09 is: 356,241.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,424.52 : 606,410.61 = 258,144.09 : x
  2. Step 2: Convert to fraction form
    439,424.52/606,410.61 = 258,144.09/x
  3. Step 3: Cross multiply
    439,424.52x = 606,410.61 × 258,144.09
  4. Step 4: Simplify right side
    439,424.52x = 156,541,312,052.74
  5. Step 5: Solve for x
    x = 156,541,312,052.74/439,424.52
  6. Step 6: Final answer
    x = 356,241.64

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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.