Home / 485,839.06-670,458.80-270,993.04

Finding the Fourth Proportional to 485,839.06, 670,458.80 and 270,993.04

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Solution

The fourth proportional to 485,839.06, 670,458.80 and 270,993.04 is: 373,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,839.06 : 670,458.80 = 270,993.04 : x
  2. Step 2: Convert to fraction form
    485,839.06/670,458.80 = 270,993.04/x
  3. Step 3: Cross multiply
    485,839.06x = 670,458.80 × 270,993.04
  4. Step 4: Simplify right side
    485,839.06x = 181,689,667,408.09
  5. Step 5: Solve for x
    x = 181,689,667,408.09/485,839.06
  6. Step 6: Final answer
    x = 373,970.90

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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.