Home / 386,015.02-578,382.26-273,135.72

Finding the Fourth Proportional to 386,015.02, 578,382.26 and 273,135.72

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Solution

The fourth proportional to 386,015.02, 578,382.26 and 273,135.72 is: 409,250.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,015.02 : 578,382.26 = 273,135.72 : x
  2. Step 2: Convert to fraction form
    386,015.02/578,382.26 = 273,135.72/x
  3. Step 3: Cross multiply
    386,015.02x = 578,382.26 × 273,135.72
  4. Step 4: Simplify right side
    386,015.02x = 157,976,855,020.33
  5. Step 5: Solve for x
    x = 157,976,855,020.33/386,015.02
  6. Step 6: Final answer
    x = 409,250.54

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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.