Home / 1,293,623.78-1,772,271-1,245,139.83

Finding the Fourth Proportional to 1,293,623.78, 1,772,271 and 1,245,139.83

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Solution

The fourth proportional to 1,293,623.78, 1,772,271 and 1,245,139.83 is: 1,705,847.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,623.78 : 1,772,271 = 1,245,139.83 : x
  2. Step 2: Convert to fraction form
    1,293,623.78/1,772,271 = 1,245,139.83/x
  3. Step 3: Cross multiply
    1,293,623.78x = 1,772,271 × 1,245,139.83
  4. Step 4: Simplify right side
    1,293,623.78x = 2,206,725,211,653.93
  5. Step 5: Solve for x
    x = 2,206,725,211,653.93/1,293,623.78
  6. Step 6: Final answer
    x = 1,705,847.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.