Home / 485,919.72-670,621.14-271,134.36

Finding the Fourth Proportional to 485,919.72, 670,621.14 and 271,134.36

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Solution

The fourth proportional to 485,919.72, 670,621.14 and 271,134.36 is: 374,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,919.72 : 670,621.14 = 271,134.36 : x
  2. Step 2: Convert to fraction form
    485,919.72/670,621.14 = 271,134.36/x
  3. Step 3: Cross multiply
    485,919.72x = 670,621.14 × 271,134.36
  4. Step 4: Simplify right side
    485,919.72x = 181,828,433,596.37
  5. Step 5: Solve for x
    x = 181,828,433,596.37/485,919.72
  6. Step 6: Final answer
    x = 374,194.39

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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.