Home / 1,042.20-1,438.16-600.08

Finding the Fourth Proportional to 1,042.20, 1,438.16 and 600.08

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Solution

The fourth proportional to 1,042.20, 1,438.16 and 600.08 is: 828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.20 : 1,438.16 = 600.08 : x
  2. Step 2: Convert to fraction form
    1,042.20/1,438.16 = 600.08/x
  3. Step 3: Cross multiply
    1,042.20x = 1,438.16 × 600.08
  4. Step 4: Simplify right side
    1,042.20x = 863,000.86
  5. Step 5: Solve for x
    x = 863,000.86/1,042.20
  6. Step 6: Final answer
    x = 828.06

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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.