Home / 1,039.90-1,559.60-600.20

Finding the Fourth Proportional to 1,039.90, 1,559.60 and 600.20

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Solution

The fourth proportional to 1,039.90, 1,559.60 and 600.20 is: 900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.90 : 1,559.60 = 600.20 : x
  2. Step 2: Convert to fraction form
    1,039.90/1,559.60 = 600.20/x
  3. Step 3: Cross multiply
    1,039.90x = 1,559.60 × 600.20
  4. Step 4: Simplify right side
    1,039.90x = 936,071.92
  5. Step 5: Solve for x
    x = 936,071.92/1,039.90
  6. Step 6: Final answer
    x = 900.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.