Home / 386,968.22-579,764.90-330,232.58

Finding the Fourth Proportional to 386,968.22, 579,764.90 and 330,232.58

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Solution

The fourth proportional to 386,968.22, 579,764.90 and 330,232.58 is: 494,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,968.22 : 579,764.90 = 330,232.58 : x
  2. Step 2: Convert to fraction form
    386,968.22/579,764.90 = 330,232.58/x
  3. Step 3: Cross multiply
    386,968.22x = 579,764.90 × 330,232.58
  4. Step 4: Simplify right side
    386,968.22x = 191,457,255,821.62
  5. Step 5: Solve for x
    x = 191,457,255,821.62/386,968.22
  6. Step 6: Final answer
    x = 494,762.23

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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.