Home / 328,986.20-493,176.90-328,784.60

Finding the Fourth Proportional to 328,986.20, 493,176.90 and 328,784.60

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Solution

The fourth proportional to 328,986.20, 493,176.90 and 328,784.60 is: 492,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,986.20 : 493,176.90 = 328,784.60 : x
  2. Step 2: Convert to fraction form
    328,986.20/493,176.90 = 328,784.60/x
  3. Step 3: Cross multiply
    328,986.20x = 493,176.90 × 328,784.60
  4. Step 4: Simplify right side
    328,986.20x = 162,148,969,795.74
  5. Step 5: Solve for x
    x = 162,148,969,795.74/328,986.20
  6. Step 6: Final answer
    x = 492,874.69

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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.