Home / 628,621.44-867,426.56-370,481.60

Finding the Fourth Proportional to 628,621.44, 867,426.56 and 370,481.60

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Solution

The fourth proportional to 628,621.44, 867,426.56 and 370,481.60 is: 511,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,621.44 : 867,426.56 = 370,481.60 : x
  2. Step 2: Convert to fraction form
    628,621.44/867,426.56 = 370,481.60/x
  3. Step 3: Cross multiply
    628,621.44x = 867,426.56 × 370,481.60
  4. Step 4: Simplify right side
    628,621.44x = 321,365,579,831.30
  5. Step 5: Solve for x
    x = 321,365,579,831.30/628,621.44
  6. Step 6: Final answer
    x = 511,222.75

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1.5x scale

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.