Home / 426,467.67-639,922.91-173,933.43

Finding the Fourth Proportional to 426,467.67, 639,922.91 and 173,933.43

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Solution

The fourth proportional to 426,467.67, 639,922.91 and 173,933.43 is: 260,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,467.67 : 639,922.91 = 173,933.43 : x
  2. Step 2: Convert to fraction form
    426,467.67/639,922.91 = 173,933.43/x
  3. Step 3: Cross multiply
    426,467.67x = 639,922.91 × 173,933.43
  4. Step 4: Simplify right side
    426,467.67x = 111,303,985,802.21
  5. Step 5: Solve for x
    x = 111,303,985,802.21/426,467.67
  6. Step 6: Final answer
    x = 260,990.44

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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.