Home / 1,329,421.26-1,993,713.62-430,654.47

Finding the Fourth Proportional to 1,329,421.26, 1,993,713.62 and 430,654.47

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Solution

The fourth proportional to 1,329,421.26, 1,993,713.62 and 430,654.47 is: 645,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,421.26 : 1,993,713.62 = 430,654.47 : x
  2. Step 2: Convert to fraction form
    1,329,421.26/1,993,713.62 = 430,654.47/x
  3. Step 3: Cross multiply
    1,329,421.26x = 1,993,713.62 × 430,654.47
  4. Step 4: Simplify right side
    1,329,421.26x = 858,601,685,183.89
  5. Step 5: Solve for x
    x = 858,601,685,183.89/1,329,421.26
  6. Step 6: Final answer
    x = 645,846.21

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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.