Home / 1,384,866.32-1,911,434.33-812,091.02

Finding the Fourth Proportional to 1,384,866.32, 1,911,434.33 and 812,091.02

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Solution

The fourth proportional to 1,384,866.32, 1,911,434.33 and 812,091.02 is: 1,120,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,866.32 : 1,911,434.33 = 812,091.02 : x
  2. Step 2: Convert to fraction form
    1,384,866.32/1,911,434.33 = 812,091.02/x
  3. Step 3: Cross multiply
    1,384,866.32x = 1,911,434.33 × 812,091.02
  4. Step 4: Simplify right side
    1,384,866.32x = 1,552,258,647,185.77
  5. Step 5: Solve for x
    x = 1,552,258,647,185.77/1,384,866.32
  6. Step 6: Final answer
    x = 1,120,872.56

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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.