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Finding the Fourth Proportional to 602,819.55, 831,920.45 and 330,884.56

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Solution

The fourth proportional to 602,819.55, 831,920.45 and 330,884.56 is: 456,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,819.55 : 831,920.45 = 330,884.56 : x
  2. Step 2: Convert to fraction form
    602,819.55/831,920.45 = 330,884.56/x
  3. Step 3: Cross multiply
    602,819.55x = 831,920.45 × 330,884.56
  4. Step 4: Simplify right side
    602,819.55x = 275,269,628,859.68
  5. Step 5: Solve for x
    x = 275,269,628,859.68/602,819.55
  6. Step 6: Final answer
    x = 456,636.86

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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.