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Finding the Fourth Proportional to 893,640.40, 1,340,460.60 and 332,558.80

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Solution

The fourth proportional to 893,640.40, 1,340,460.60 and 332,558.80 is: 498,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,640.40 : 1,340,460.60 = 332,558.80 : x
  2. Step 2: Convert to fraction form
    893,640.40/1,340,460.60 = 332,558.80/x
  3. Step 3: Cross multiply
    893,640.40x = 1,340,460.60 × 332,558.80
  4. Step 4: Simplify right side
    893,640.40x = 445,781,968,583.28
  5. Step 5: Solve for x
    x = 445,781,968,583.28/893,640.40
  6. Step 6: Final answer
    x = 498,838.20

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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.