Home / 1,120.60-1,546.29-623.08

Finding the Fourth Proportional to 1,120.60, 1,546.29 and 623.08

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Solution

The fourth proportional to 1,120.60, 1,546.29 and 623.08 is: 859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.60 : 1,546.29 = 623.08 : x
  2. Step 2: Convert to fraction form
    1,120.60/1,546.29 = 623.08/x
  3. Step 3: Cross multiply
    1,120.60x = 1,546.29 × 623.08
  4. Step 4: Simplify right side
    1,120.60x = 963,462.37
  5. Step 5: Solve for x
    x = 963,462.37/1,120.60
  6. Step 6: Final answer
    x = 859.77

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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.