Home / 628,816.43-867,766.42-342,336.44

Finding the Fourth Proportional to 628,816.43, 867,766.42 and 342,336.44

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Solution

The fourth proportional to 628,816.43, 867,766.42 and 342,336.44 is: 472,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,816.43 : 867,766.42 = 342,336.44 : x
  2. Step 2: Convert to fraction form
    628,816.43/867,766.42 = 342,336.44/x
  3. Step 3: Cross multiply
    628,816.43x = 867,766.42 × 342,336.44
  4. Step 4: Simplify right side
    628,816.43x = 297,068,066,974.35
  5. Step 5: Solve for x
    x = 297,068,066,974.35/628,816.43
  6. Step 6: Final answer
    x = 472,424.15

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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.