Home / 1,152,126.80-1,728,190.20-731,704.40

Finding the Fourth Proportional to 1,152,126.80, 1,728,190.20 and 731,704.40

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Solution

The fourth proportional to 1,152,126.80, 1,728,190.20 and 731,704.40 is: 1,097,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,126.80 : 1,728,190.20 = 731,704.40 : x
  2. Step 2: Convert to fraction form
    1,152,126.80/1,728,190.20 = 731,704.40/x
  3. Step 3: Cross multiply
    1,152,126.80x = 1,728,190.20 × 731,704.40
  4. Step 4: Simplify right side
    1,152,126.80x = 1,264,524,373,376.88
  5. Step 5: Solve for x
    x = 1,264,524,373,376.88/1,152,126.80
  6. Step 6: Final answer
    x = 1,097,556.60

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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.