Home / 1,120.58-1,546.48-623.34

Finding the Fourth Proportional to 1,120.58, 1,546.48 and 623.34

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Solution

The fourth proportional to 1,120.58, 1,546.48 and 623.34 is: 860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.58 : 1,546.48 = 623.34 : x
  2. Step 2: Convert to fraction form
    1,120.58/1,546.48 = 623.34/x
  3. Step 3: Cross multiply
    1,120.58x = 1,546.48 × 623.34
  4. Step 4: Simplify right side
    1,120.58x = 963,982.84
  5. Step 5: Solve for x
    x = 963,982.84/1,120.58
  6. Step 6: Final answer
    x = 860.25

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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.