Home / 3,118,978.87-4,678,911.17-960,183.64

Finding the Fourth Proportional to 3,118,978.87, 4,678,911.17 and 960,183.64

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Solution

The fourth proportional to 3,118,978.87, 4,678,911.17 and 960,183.64 is: 1,440,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,978.87 : 4,678,911.17 = 960,183.64 : x
  2. Step 2: Convert to fraction form
    3,118,978.87/4,678,911.17 = 960,183.64/x
  3. Step 3: Cross multiply
    3,118,978.87x = 4,678,911.17 × 960,183.64
  4. Step 4: Simplify right side
    3,118,978.87x = 4,492,613,958,447.26
  5. Step 5: Solve for x
    x = 4,492,613,958,447.26/3,118,978.87
  6. Step 6: Final answer
    x = 1,440,411.80

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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.