Home / 789,352.69-1,089,305.78-426,775.69

Finding the Fourth Proportional to 789,352.69, 1,089,305.78 and 426,775.69

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Solution

The fourth proportional to 789,352.69, 1,089,305.78 and 426,775.69 is: 588,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,352.69 : 1,089,305.78 = 426,775.69 : x
  2. Step 2: Convert to fraction form
    789,352.69/1,089,305.78 = 426,775.69/x
  3. Step 3: Cross multiply
    789,352.69x = 1,089,305.78 × 426,775.69
  4. Step 4: Simplify right side
    789,352.69x = 464,889,220,181.20
  5. Step 5: Solve for x
    x = 464,889,220,181.20/789,352.69
  6. Step 6: Final answer
    x = 588,949.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.