Home / 648,647.66-972,181.85-459,161.73

Finding the Fourth Proportional to 648,647.66, 972,181.85 and 459,161.73

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Solution

The fourth proportional to 648,647.66, 972,181.85 and 459,161.73 is: 688,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,647.66 : 972,181.85 = 459,161.73 : x
  2. Step 2: Convert to fraction form
    648,647.66/972,181.85 = 459,161.73/x
  3. Step 3: Cross multiply
    648,647.66x = 972,181.85 × 459,161.73
  4. Step 4: Simplify right side
    648,647.66x = 446,388,697,824.79
  5. Step 5: Solve for x
    x = 446,388,697,824.79/648,647.66
  6. Step 6: Final answer
    x = 688,183.62

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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.