Home / 328,977.20-493,163.40-328,775.60

Finding the Fourth Proportional to 328,977.20, 493,163.40 and 328,775.60

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Solution

The fourth proportional to 328,977.20, 493,163.40 and 328,775.60 is: 492,861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,977.20 : 493,163.40 = 328,775.60 : x
  2. Step 2: Convert to fraction form
    328,977.20/493,163.40 = 328,775.60/x
  3. Step 3: Cross multiply
    328,977.20x = 493,163.40 × 328,775.60
  4. Step 4: Simplify right side
    328,977.20x = 162,140,092,733.04
  5. Step 5: Solve for x
    x = 162,140,092,733.04/328,977.20
  6. Step 6: Final answer
    x = 492,861.19

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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.