Home / 1,993,218.08-2,990,303.28-645,382.13

Finding the Fourth Proportional to 1,993,218.08, 2,990,303.28 and 645,382.13

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Solution

The fourth proportional to 1,993,218.08, 2,990,303.28 and 645,382.13 is: 968,227.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,218.08 : 2,990,303.28 = 645,382.13 : x
  2. Step 2: Convert to fraction form
    1,993,218.08/2,990,303.28 = 645,382.13/x
  3. Step 3: Cross multiply
    1,993,218.08x = 2,990,303.28 × 645,382.13
  4. Step 4: Simplify right side
    1,993,218.08x = 1,929,888,285,240.87
  5. Step 5: Solve for x
    x = 1,929,888,285,240.87/1,993,218.08
  6. Step 6: Final answer
    x = 968,227.37

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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.