Home / 683,906.40-1,026,442.80-305,409.60

Finding the Fourth Proportional to 683,906.40, 1,026,442.80 and 305,409.60

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Solution

The fourth proportional to 683,906.40, 1,026,442.80 and 305,409.60 is: 458,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,906.40 : 1,026,442.80 = 305,409.60 : x
  2. Step 2: Convert to fraction form
    683,906.40/1,026,442.80 = 305,409.60/x
  3. Step 3: Cross multiply
    683,906.40x = 1,026,442.80 × 305,409.60
  4. Step 4: Simplify right side
    683,906.40x = 313,485,484,970.88
  5. Step 5: Solve for x
    x = 313,485,484,970.88/683,906.40
  6. Step 6: Final answer
    x = 458,374.84

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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.