Home / 1,384,554.36-1,910,709.90-812,007.48

Finding the Fourth Proportional to 1,384,554.36, 1,910,709.90 and 812,007.48

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Solution

The fourth proportional to 1,384,554.36, 1,910,709.90 and 812,007.48 is: 1,120,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,554.36 : 1,910,709.90 = 812,007.48 : x
  2. Step 2: Convert to fraction form
    1,384,554.36/1,910,709.90 = 812,007.48/x
  3. Step 3: Cross multiply
    1,384,554.36x = 1,910,709.90 × 812,007.48
  4. Step 4: Simplify right side
    1,384,554.36x = 1,551,510,730,910.05
  5. Step 5: Solve for x
    x = 1,551,510,730,910.05/1,384,554.36
  6. Step 6: Final answer
    x = 1,120,584.92

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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.