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Finding the Fourth Proportional to 1,127.63, 1,556.14 and 623.52

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Solution

The fourth proportional to 1,127.63, 1,556.14 and 623.52 is: 860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.63 : 1,556.14 = 623.52 : x
  2. Step 2: Convert to fraction form
    1,127.63/1,556.14 = 623.52/x
  3. Step 3: Cross multiply
    1,127.63x = 1,556.14 × 623.52
  4. Step 4: Simplify right side
    1,127.63x = 970,288.62
  5. Step 5: Solve for x
    x = 970,288.62/1,127.63
  6. Step 6: Final answer
    x = 860.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.