Home / 485,985.83-670,647.50-271,120.37

Finding the Fourth Proportional to 485,985.83, 670,647.50 and 271,120.37

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Solution

The fourth proportional to 485,985.83, 670,647.50 and 271,120.37 is: 374,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,985.83 : 670,647.50 = 271,120.37 : x
  2. Step 2: Convert to fraction form
    485,985.83/670,647.50 = 271,120.37/x
  3. Step 3: Cross multiply
    485,985.83x = 670,647.50 × 271,120.37
  4. Step 4: Simplify right side
    485,985.83x = 181,826,194,647.44
  5. Step 5: Solve for x
    x = 181,826,194,647.44/485,985.83
  6. Step 6: Final answer
    x = 374,138.88

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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.