Home / 886,990.40-1,330,485.60-513,742.40

Finding the Fourth Proportional to 886,990.40, 1,330,485.60 and 513,742.40

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Solution

The fourth proportional to 886,990.40, 1,330,485.60 and 513,742.40 is: 770,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,990.40 : 1,330,485.60 = 513,742.40 : x
  2. Step 2: Convert to fraction form
    886,990.40/1,330,485.60 = 513,742.40/x
  3. Step 3: Cross multiply
    886,990.40x = 1,330,485.60 × 513,742.40
  4. Step 4: Simplify right side
    886,990.40x = 683,526,865,309.44
  5. Step 5: Solve for x
    x = 683,526,865,309.44/886,990.40
  6. Step 6: Final answer
    x = 770,613.60

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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.