Home / 726,059.49-1,089,157.53-213,724.96

Finding the Fourth Proportional to 726,059.49, 1,089,157.53 and 213,724.96

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Solution

The fourth proportional to 726,059.49, 1,089,157.53 and 213,724.96 is: 320,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,059.49 : 1,089,157.53 = 213,724.96 : x
  2. Step 2: Convert to fraction form
    726,059.49/1,089,157.53 = 213,724.96/x
  3. Step 3: Cross multiply
    726,059.49x = 1,089,157.53 × 213,724.96
  4. Step 4: Simplify right side
    726,059.49x = 232,780,152,535.83
  5. Step 5: Solve for x
    x = 232,780,152,535.83/726,059.49
  6. Step 6: Final answer
    x = 320,607.55

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1.5x scale

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.