Home / 842.03-1,161.60-492.50

Finding the Fourth Proportional to 842.03, 1,161.60 and 492.50

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Solution

The fourth proportional to 842.03, 1,161.60 and 492.50 is: 679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.03 : 1,161.60 = 492.50 : x
  2. Step 2: Convert to fraction form
    842.03/1,161.60 = 492.50/x
  3. Step 3: Cross multiply
    842.03x = 1,161.60 × 492.50
  4. Step 4: Simplify right side
    842.03x = 572,088
  5. Step 5: Solve for x
    x = 572,088/842.03
  6. Step 6: Final answer
    x = 679.42

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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.