Home / 782,635.46-1,079,477.97-718,313.36

Finding the Fourth Proportional to 782,635.46, 1,079,477.97 and 718,313.36

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Solution

The fourth proportional to 782,635.46, 1,079,477.97 and 718,313.36 is: 990,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,635.46 : 1,079,477.97 = 718,313.36 : x
  2. Step 2: Convert to fraction form
    782,635.46/1,079,477.97 = 718,313.36/x
  3. Step 3: Cross multiply
    782,635.46x = 1,079,477.97 × 718,313.36
  4. Step 4: Simplify right side
    782,635.46x = 775,403,447,676.68
  5. Step 5: Solve for x
    x = 775,403,447,676.68/782,635.46
  6. Step 6: Final answer
    x = 990,759.41

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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.