Home / 485,890.52-670,543.11-271,025.93

Finding the Fourth Proportional to 485,890.52, 670,543.11 and 271,025.93

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Solution

The fourth proportional to 485,890.52, 670,543.11 and 271,025.93 is: 374,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,890.52 : 670,543.11 = 271,025.93 : x
  2. Step 2: Convert to fraction form
    485,890.52/670,543.11 = 271,025.93/x
  3. Step 3: Cross multiply
    485,890.52x = 670,543.11 × 271,025.93
  4. Step 4: Simplify right side
    485,890.52x = 181,734,571,669.20
  5. Step 5: Solve for x
    x = 181,734,571,669.20/485,890.52
  6. Step 6: Final answer
    x = 374,023.71

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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.