Home / 789,533.73-1,089,679.19-518,388.21

Finding the Fourth Proportional to 789,533.73, 1,089,679.19 and 518,388.21

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Solution

The fourth proportional to 789,533.73, 1,089,679.19 and 518,388.21 is: 715,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,533.73 : 1,089,679.19 = 518,388.21 : x
  2. Step 2: Convert to fraction form
    789,533.73/1,089,679.19 = 518,388.21/x
  3. Step 3: Cross multiply
    789,533.73x = 1,089,679.19 × 518,388.21
  4. Step 4: Simplify right side
    789,533.73x = 564,876,842,186.41
  5. Step 5: Solve for x
    x = 564,876,842,186.41/789,533.73
  6. Step 6: Final answer
    x = 715,456.25

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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.