Home / 1,029.11-1,420.38-604.04

Finding the Fourth Proportional to 1,029.11, 1,420.38 and 604.04

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Solution

The fourth proportional to 1,029.11, 1,420.38 and 604.04 is: 833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.11 : 1,420.38 = 604.04 : x
  2. Step 2: Convert to fraction form
    1,029.11/1,420.38 = 604.04/x
  3. Step 3: Cross multiply
    1,029.11x = 1,420.38 × 604.04
  4. Step 4: Simplify right side
    1,029.11x = 857,959.23
  5. Step 5: Solve for x
    x = 857,959.23/1,029.11
  6. Step 6: Final answer
    x = 833.69

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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.