Home / 789,533.98-1,089,679.53-518,388.46

Finding the Fourth Proportional to 789,533.98, 1,089,679.53 and 518,388.46

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Solution

The fourth proportional to 789,533.98, 1,089,679.53 and 518,388.46 is: 715,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,533.98 : 1,089,679.53 = 518,388.46 : x
  2. Step 2: Convert to fraction form
    789,533.98/1,089,679.53 = 518,388.46/x
  3. Step 3: Cross multiply
    789,533.98x = 1,089,679.53 × 518,388.46
  4. Step 4: Simplify right side
    789,533.98x = 564,877,293,450.22
  5. Step 5: Solve for x
    x = 564,877,293,450.22/789,533.98
  6. Step 6: Final answer
    x = 715,456.60

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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.