Home / 1,262,161.80-1,892,321.10-513,822.60

Finding the Fourth Proportional to 1,262,161.80, 1,892,321.10 and 513,822.60

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Solution

The fourth proportional to 1,262,161.80, 1,892,321.10 and 513,822.60 is: 770,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,161.80 : 1,892,321.10 = 513,822.60 : x
  2. Step 2: Convert to fraction form
    1,262,161.80/1,892,321.10 = 513,822.60/x
  3. Step 3: Cross multiply
    1,262,161.80x = 1,892,321.10 × 513,822.60
  4. Step 4: Simplify right side
    1,262,161.80x = 972,317,347,636.86
  5. Step 5: Solve for x
    x = 972,317,347,636.86/1,262,161.80
  6. Step 6: Final answer
    x = 770,358.72

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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.