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Finding the Fourth Proportional to 398,644.37, 598,246.77 and 360,530.09

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Solution

The fourth proportional to 398,644.37, 598,246.77 and 360,530.09 is: 541,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,644.37 : 598,246.77 = 360,530.09 : x
  2. Step 2: Convert to fraction form
    398,644.37/598,246.77 = 360,530.09/x
  3. Step 3: Cross multiply
    398,644.37x = 598,246.77 × 360,530.09
  4. Step 4: Simplify right side
    398,644.37x = 215,685,961,830.31
  5. Step 5: Solve for x
    x = 215,685,961,830.31/398,644.37
  6. Step 6: Final answer
    x = 541,048.56

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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.