Home / 1,042.46-1,438.76-623.14

Finding the Fourth Proportional to 1,042.46, 1,438.76 and 623.14

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Solution

The fourth proportional to 1,042.46, 1,438.76 and 623.14 is: 860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.46 : 1,438.76 = 623.14 : x
  2. Step 2: Convert to fraction form
    1,042.46/1,438.76 = 623.14/x
  3. Step 3: Cross multiply
    1,042.46x = 1,438.76 × 623.14
  4. Step 4: Simplify right side
    1,042.46x = 896,552.26
  5. Step 5: Solve for x
    x = 896,552.26/1,042.46
  6. Step 6: Final answer
    x = 860.03

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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.