Home / 726,081.20-1,089,121.80-668,020.40

Finding the Fourth Proportional to 726,081.20, 1,089,121.80 and 668,020.40

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Solution

The fourth proportional to 726,081.20, 1,089,121.80 and 668,020.40 is: 1,002,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,081.20 : 1,089,121.80 = 668,020.40 : x
  2. Step 2: Convert to fraction form
    726,081.20/1,089,121.80 = 668,020.40/x
  3. Step 3: Cross multiply
    726,081.20x = 1,089,121.80 × 668,020.40
  4. Step 4: Simplify right side
    726,081.20x = 727,555,580,484.72
  5. Step 5: Solve for x
    x = 727,555,580,484.72/726,081.20
  6. Step 6: Final answer
    x = 1,002,030.60

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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.