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Finding the Fourth Proportional to 628,957.44, 867,745.44 and 357,004.80

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Solution

The fourth proportional to 628,957.44, 867,745.44 and 357,004.80 is: 492,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,957.44 : 867,745.44 = 357,004.80 : x
  2. Step 2: Convert to fraction form
    628,957.44/867,745.44 = 357,004.80/x
  3. Step 3: Cross multiply
    628,957.44x = 867,745.44 × 357,004.80
  4. Step 4: Simplify right side
    628,957.44x = 309,789,287,258.11
  5. Step 5: Solve for x
    x = 309,789,287,258.11/628,957.44
  6. Step 6: Final answer
    x = 492,544.12

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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.