Home / 1,489,280.72-2,055,216.32-810,222.08

Finding the Fourth Proportional to 1,489,280.72, 2,055,216.32 and 810,222.08

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Solution

The fourth proportional to 1,489,280.72, 2,055,216.32 and 810,222.08 is: 1,118,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,280.72 : 2,055,216.32 = 810,222.08 : x
  2. Step 2: Convert to fraction form
    1,489,280.72/2,055,216.32 = 810,222.08/x
  3. Step 3: Cross multiply
    1,489,280.72x = 2,055,216.32 × 810,222.08
  4. Step 4: Simplify right side
    1,489,280.72x = 1,665,181,641,640.35
  5. Step 5: Solve for x
    x = 1,665,181,641,640.35/1,489,280.72
  6. Step 6: Final answer
    x = 1,118,111.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.