Home / 439,814.10-658,846.35-408,321.30

Finding the Fourth Proportional to 439,814.10, 658,846.35 and 408,321.30

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Solution

The fourth proportional to 439,814.10, 658,846.35 and 408,321.30 is: 611,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,814.10 : 658,846.35 = 408,321.30 : x
  2. Step 2: Convert to fraction form
    439,814.10/658,846.35 = 408,321.30/x
  3. Step 3: Cross multiply
    439,814.10x = 658,846.35 × 408,321.30
  4. Step 4: Simplify right side
    439,814.10x = 269,020,998,132.26
  5. Step 5: Solve for x
    x = 269,020,998,132.26/439,814.10
  6. Step 6: Final answer
    x = 611,669.79

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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.