Home / 1,329,422.26-1,993,715.11-430,655.47

Finding the Fourth Proportional to 1,329,422.26, 1,993,715.11 and 430,655.47

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Solution

The fourth proportional to 1,329,422.26, 1,993,715.11 and 430,655.47 is: 645,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,422.26 : 1,993,715.11 = 430,655.47 : x
  2. Step 2: Convert to fraction form
    1,329,422.26/1,993,715.11 = 430,655.47/x
  3. Step 3: Cross multiply
    1,329,422.26x = 1,993,715.11 × 430,655.47
  4. Step 4: Simplify right side
    1,329,422.26x = 858,604,317,743.15
  5. Step 5: Solve for x
    x = 858,604,317,743.15/1,329,422.26
  6. Step 6: Final answer
    x = 645,847.71

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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.