Home / 979,739.58-1,352,039.60-550,020.54

Finding the Fourth Proportional to 979,739.58, 1,352,039.60 and 550,020.54

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Solution

The fourth proportional to 979,739.58, 1,352,039.60 and 550,020.54 is: 759,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,739.58 : 1,352,039.60 = 550,020.54 : x
  2. Step 2: Convert to fraction form
    979,739.58/1,352,039.60 = 550,020.54/x
  3. Step 3: Cross multiply
    979,739.58x = 1,352,039.60 × 550,020.54
  4. Step 4: Simplify right side
    979,739.58x = 743,649,548,143.28
  5. Step 5: Solve for x
    x = 743,649,548,143.28/979,739.58
  6. Step 6: Final answer
    x = 759,027.77

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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.