Home / 1,100,458.95-1,518,074.42-718,709.19

Finding the Fourth Proportional to 1,100,458.95, 1,518,074.42 and 718,709.19

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Solution

The fourth proportional to 1,100,458.95, 1,518,074.42 and 718,709.19 is: 991,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,458.95 : 1,518,074.42 = 718,709.19 : x
  2. Step 2: Convert to fraction form
    1,100,458.95/1,518,074.42 = 718,709.19/x
  3. Step 3: Cross multiply
    1,100,458.95x = 1,518,074.42 × 718,709.19
  4. Step 4: Simplify right side
    1,100,458.95x = 1,091,054,036,757.92
  5. Step 5: Solve for x
    x = 1,091,054,036,757.92/1,100,458.95
  6. Step 6: Final answer
    x = 991,453.64

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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.