Home / 1,284,173.80-1,922,574.30-1,247,309.80

Finding the Fourth Proportional to 1,284,173.80, 1,922,574.30 and 1,247,309.80

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Solution

The fourth proportional to 1,284,173.80, 1,922,574.30 and 1,247,309.80 is: 1,867,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,173.80 : 1,922,574.30 = 1,247,309.80 : x
  2. Step 2: Convert to fraction form
    1,284,173.80/1,922,574.30 = 1,247,309.80/x
  3. Step 3: Cross multiply
    1,284,173.80x = 1,922,574.30 × 1,247,309.80
  4. Step 4: Simplify right side
    1,284,173.80x = 2,398,045,765,618.14
  5. Step 5: Solve for x
    x = 2,398,045,765,618.14/1,284,173.80
  6. Step 6: Final answer
    x = 1,867,384.12

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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.