Home / 1,042.44-1,438.76-623.04

Finding the Fourth Proportional to 1,042.44, 1,438.76 and 623.04

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Solution

The fourth proportional to 1,042.44, 1,438.76 and 623.04 is: 859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.44 : 1,438.76 = 623.04 : x
  2. Step 2: Convert to fraction form
    1,042.44/1,438.76 = 623.04/x
  3. Step 3: Cross multiply
    1,042.44x = 1,438.76 × 623.04
  4. Step 4: Simplify right side
    1,042.44x = 896,405.03
  5. Step 5: Solve for x
    x = 896,405.03/1,042.44
  6. Step 6: Final answer
    x = 859.91

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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.