Home / 3,860,721.20-5,787,505.98-1,430,520.39

Finding the Fourth Proportional to 3,860,721.20, 5,787,505.98 and 1,430,520.39

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Solution

The fourth proportional to 3,860,721.20, 5,787,505.98 and 1,430,520.39 is: 2,144,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860,721.20 : 5,787,505.98 = 1,430,520.39 : x
  2. Step 2: Convert to fraction form
    3,860,721.20/5,787,505.98 = 1,430,520.39/x
  3. Step 3: Cross multiply
    3,860,721.20x = 5,787,505.98 × 1,430,520.39
  4. Step 4: Simplify right side
    3,860,721.20x = 8,279,145,311,636.93
  5. Step 5: Solve for x
    x = 8,279,145,311,636.93/3,860,721.20
  6. Step 6: Final answer
    x = 2,144,455.63

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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.