Home / 1,147.30-1,583.26-623.33

Finding the Fourth Proportional to 1,147.30, 1,583.26 and 623.33

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Solution

The fourth proportional to 1,147.30, 1,583.26 and 623.33 is: 860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.30 : 1,583.26 = 623.33 : x
  2. Step 2: Convert to fraction form
    1,147.30/1,583.26 = 623.33/x
  3. Step 3: Cross multiply
    1,147.30x = 1,583.26 × 623.33
  4. Step 4: Simplify right side
    1,147.30x = 986,893.42
  5. Step 5: Solve for x
    x = 986,893.42/1,147.30
  6. Step 6: Final answer
    x = 860.19

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1.5x scale

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.