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Finding the Fourth Proportional to 602,922.74, 831,980.88 and 330,989.54

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Solution

The fourth proportional to 602,922.74, 831,980.88 and 330,989.54 is: 456,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,922.74 : 831,980.88 = 330,989.54 : x
  2. Step 2: Convert to fraction form
    602,922.74/831,980.88 = 330,989.54/x
  3. Step 3: Cross multiply
    602,922.74x = 831,980.88 × 330,989.54
  4. Step 4: Simplify right side
    602,922.74x = 275,376,964,600.09
  5. Step 5: Solve for x
    x = 275,376,964,600.09/602,922.74
  6. Step 6: Final answer
    x = 456,736.74

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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.