Home / 1,431,614.18-2,147,421.67-420,736.08

Finding the Fourth Proportional to 1,431,614.18, 2,147,421.67 and 420,736.08

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Solution

The fourth proportional to 1,431,614.18, 2,147,421.67 and 420,736.08 is: 631,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,614.18 : 2,147,421.67 = 420,736.08 : x
  2. Step 2: Convert to fraction form
    1,431,614.18/2,147,421.67 = 420,736.08/x
  3. Step 3: Cross multiply
    1,431,614.18x = 2,147,421.67 × 420,736.08
  4. Step 4: Simplify right side
    1,431,614.18x = 903,497,775,542.85
  5. Step 5: Solve for x
    x = 903,497,775,542.85/1,431,614.18
  6. Step 6: Final answer
    x = 631,104.24

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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.