Home / 1,042.64-1,438.60-600.40

Finding the Fourth Proportional to 1,042.64, 1,438.60 and 600.40

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Solution

The fourth proportional to 1,042.64, 1,438.60 and 600.40 is: 828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.64 : 1,438.60 = 600.40 : x
  2. Step 2: Convert to fraction form
    1,042.64/1,438.60 = 600.40/x
  3. Step 3: Cross multiply
    1,042.64x = 1,438.60 × 600.40
  4. Step 4: Simplify right side
    1,042.64x = 863,735.44
  5. Step 5: Solve for x
    x = 863,735.44/1,042.64
  6. Step 6: Final answer
    x = 828.41

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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.