Home / 1,368,512.64-1,888,471.26-756,630

Finding the Fourth Proportional to 1,368,512.64, 1,888,471.26 and 756,630

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Solution

The fourth proportional to 1,368,512.64, 1,888,471.26 and 756,630 is: 1,044,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,512.64 : 1,888,471.26 = 756,630 : x
  2. Step 2: Convert to fraction form
    1,368,512.64/1,888,471.26 = 756,630/x
  3. Step 3: Cross multiply
    1,368,512.64x = 1,888,471.26 × 756,630
  4. Step 4: Simplify right side
    1,368,512.64x = 1,428,874,009,453.80
  5. Step 5: Solve for x
    x = 1,428,874,009,453.80/1,368,512.64
  6. Step 6: Final answer
    x = 1,044,107.28

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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.