Home / 1,431,902.70-2,147,853.22-421,033.03

Finding the Fourth Proportional to 1,431,902.70, 2,147,853.22 and 421,033.03

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Solution

The fourth proportional to 1,431,902.70, 2,147,853.22 and 421,033.03 is: 631,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,902.70 : 2,147,853.22 = 421,033.03 : x
  2. Step 2: Convert to fraction form
    1,431,902.70/2,147,853.22 = 421,033.03/x
  3. Step 3: Cross multiply
    1,431,902.70x = 2,147,853.22 × 421,033.03
  4. Step 4: Simplify right side
    1,431,902.70x = 904,317,149,211.86
  5. Step 5: Solve for x
    x = 904,317,149,211.86/1,431,902.70
  6. Step 6: Final answer
    x = 631,549.30

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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.