Home / 1,286,632.26-1,927,512.23-858,878.15

Finding the Fourth Proportional to 1,286,632.26, 1,927,512.23 and 858,878.15

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Solution

The fourth proportional to 1,286,632.26, 1,927,512.23 and 858,878.15 is: 1,286,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,632.26 : 1,927,512.23 = 858,878.15 : x
  2. Step 2: Convert to fraction form
    1,286,632.26/1,927,512.23 = 858,878.15/x
  3. Step 3: Cross multiply
    1,286,632.26x = 1,927,512.23 × 858,878.15
  4. Step 4: Simplify right side
    1,286,632.26x = 1,655,498,124,272.82
  5. Step 5: Solve for x
    x = 1,655,498,124,272.82/1,286,632.26
  6. Step 6: Final answer
    x = 1,286,690.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.