Home / 772,822.40-1,159,291.20-274,121.60

Finding the Fourth Proportional to 772,822.40, 1,159,291.20 and 274,121.60

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Solution

The fourth proportional to 772,822.40, 1,159,291.20 and 274,121.60 is: 411,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,822.40 : 1,159,291.20 = 274,121.60 : x
  2. Step 2: Convert to fraction form
    772,822.40/1,159,291.20 = 274,121.60/x
  3. Step 3: Cross multiply
    772,822.40x = 1,159,291.20 × 274,121.60
  4. Step 4: Simplify right side
    772,822.40x = 317,786,758,609.92
  5. Step 5: Solve for x
    x = 317,786,758,609.92/772,822.40
  6. Step 6: Final answer
    x = 411,202.83

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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.