Home / 3,987,389.60-5,980,501.20-1,147,205.60

Finding the Fourth Proportional to 3,987,389.60, 5,980,501.20 and 1,147,205.60

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Solution

The fourth proportional to 3,987,389.60, 5,980,501.20 and 1,147,205.60 is: 1,720,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,389.60 : 5,980,501.20 = 1,147,205.60 : x
  2. Step 2: Convert to fraction form
    3,987,389.60/5,980,501.20 = 1,147,205.60/x
  3. Step 3: Cross multiply
    3,987,389.60x = 5,980,501.20 × 1,147,205.60
  4. Step 4: Simplify right side
    3,987,389.60x = 6,860,864,467,446.72
  5. Step 5: Solve for x
    x = 6,860,864,467,446.72/3,987,389.60
  6. Step 6: Final answer
    x = 1,720,640.61

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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.