Home / 1,120.74-1,546.59-623.36

Finding the Fourth Proportional to 1,120.74, 1,546.59 and 623.36

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Solution

The fourth proportional to 1,120.74, 1,546.59 and 623.36 is: 860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.74 : 1,546.59 = 623.36 : x
  2. Step 2: Convert to fraction form
    1,120.74/1,546.59 = 623.36/x
  3. Step 3: Cross multiply
    1,120.74x = 1,546.59 × 623.36
  4. Step 4: Simplify right side
    1,120.74x = 964,082.02
  5. Step 5: Solve for x
    x = 964,082.02/1,120.74
  6. Step 6: Final answer
    x = 860.22

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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.