Home / 759,550.23-1,138,974.68-279,657.51

Finding the Fourth Proportional to 759,550.23, 1,138,974.68 and 279,657.51

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Solution

The fourth proportional to 759,550.23, 1,138,974.68 and 279,657.51 is: 419,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,550.23 : 1,138,974.68 = 279,657.51 : x
  2. Step 2: Convert to fraction form
    759,550.23/1,138,974.68 = 279,657.51/x
  3. Step 3: Cross multiply
    759,550.23x = 1,138,974.68 × 279,657.51
  4. Step 4: Simplify right side
    759,550.23x = 318,522,821,563.56
  5. Step 5: Solve for x
    x = 318,522,821,563.56/759,550.23
  6. Step 6: Final answer
    x = 419,357.15

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1.5x scale

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.