Home / 1,121,765.62-1,683,002.50-853,180.34

Finding the Fourth Proportional to 1,121,765.62, 1,683,002.50 and 853,180.34

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Solution

The fourth proportional to 1,121,765.62, 1,683,002.50 and 853,180.34 is: 1,280,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,765.62 : 1,683,002.50 = 853,180.34 : x
  2. Step 2: Convert to fraction form
    1,121,765.62/1,683,002.50 = 853,180.34/x
  3. Step 3: Cross multiply
    1,121,765.62x = 1,683,002.50 × 853,180.34
  4. Step 4: Simplify right side
    1,121,765.62x = 1,435,904,645,170.85
  5. Step 5: Solve for x
    x = 1,435,904,645,170.85/1,121,765.62
  6. Step 6: Final answer
    x = 1,280,039.80

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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.