Home / 1,382,507.46-1,907,900.73-809,494.02

Finding the Fourth Proportional to 1,382,507.46, 1,907,900.73 and 809,494.02

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Solution

The fourth proportional to 1,382,507.46, 1,907,900.73 and 809,494.02 is: 1,117,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,507.46 : 1,907,900.73 = 809,494.02 : x
  2. Step 2: Convert to fraction form
    1,382,507.46/1,907,900.73 = 809,494.02/x
  3. Step 3: Cross multiply
    1,382,507.46x = 1,907,900.73 × 809,494.02
  4. Step 4: Simplify right side
    1,382,507.46x = 1,544,434,231,688.63
  5. Step 5: Solve for x
    x = 1,544,434,231,688.63/1,382,507.46
  6. Step 6: Final answer
    x = 1,117,125.42

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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.