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Finding the Fourth Proportional to 350,747.60, 526,121.40 and 321,717.20

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Solution

The fourth proportional to 350,747.60, 526,121.40 and 321,717.20 is: 482,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,747.60 : 526,121.40 = 321,717.20 : x
  2. Step 2: Convert to fraction form
    350,747.60/526,121.40 = 321,717.20/x
  3. Step 3: Cross multiply
    350,747.60x = 526,121.40 × 321,717.20
  4. Step 4: Simplify right side
    350,747.60x = 169,262,303,668.08
  5. Step 5: Solve for x
    x = 169,262,303,668.08/350,747.60
  6. Step 6: Final answer
    x = 482,575.80

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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.