Home / 726,770.40-1,089,766.80-305,570.40

Finding the Fourth Proportional to 726,770.40, 1,089,766.80 and 305,570.40

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Solution

The fourth proportional to 726,770.40, 1,089,766.80 and 305,570.40 is: 458,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,770.40 : 1,089,766.80 = 305,570.40 : x
  2. Step 2: Convert to fraction form
    726,770.40/1,089,766.80 = 305,570.40/x
  3. Step 3: Cross multiply
    726,770.40x = 1,089,766.80 × 305,570.40
  4. Step 4: Simplify right side
    726,770.40x = 333,000,476,982.72
  5. Step 5: Solve for x
    x = 333,000,476,982.72/726,770.40
  6. Step 6: Final answer
    x = 458,192.13

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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.