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Finding the Fourth Proportional to 1,837,375.57, 2,750,673.84 and 1,288,364.32

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Solution

The fourth proportional to 1,837,375.57, 2,750,673.84 and 1,288,364.32 is: 1,928,767.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,375.57 : 2,750,673.84 = 1,288,364.32 : x
  2. Step 2: Convert to fraction form
    1,837,375.57/2,750,673.84 = 1,288,364.32/x
  3. Step 3: Cross multiply
    1,837,375.57x = 2,750,673.84 × 1,288,364.32
  4. Step 4: Simplify right side
    1,837,375.57x = 3,543,870,031,413.39
  5. Step 5: Solve for x
    x = 3,543,870,031,413.39/1,837,375.57
  6. Step 6: Final answer
    x = 1,928,767.36

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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.