Home / 756,243.63-1,043,642.59-412,107.91

Finding the Fourth Proportional to 756,243.63, 1,043,642.59 and 412,107.91

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Solution

The fourth proportional to 756,243.63, 1,043,642.59 and 412,107.91 is: 568,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,243.63 : 1,043,642.59 = 412,107.91 : x
  2. Step 2: Convert to fraction form
    756,243.63/1,043,642.59 = 412,107.91/x
  3. Step 3: Cross multiply
    756,243.63x = 1,043,642.59 × 412,107.91
  4. Step 4: Simplify right side
    756,243.63x = 430,093,362,912.51
  5. Step 5: Solve for x
    x = 430,093,362,912.51/756,243.63
  6. Step 6: Final answer
    x = 568,723.29

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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.