Home / 1,329,431.85-1,993,729.44-430,665.03

Finding the Fourth Proportional to 1,329,431.85, 1,993,729.44 and 430,665.03

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Solution

The fourth proportional to 1,329,431.85, 1,993,729.44 and 430,665.03 is: 645,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,431.85 : 1,993,729.44 = 430,665.03 : x
  2. Step 2: Convert to fraction form
    1,329,431.85/1,993,729.44 = 430,665.03/x
  3. Step 3: Cross multiply
    1,329,431.85x = 1,993,729.44 × 430,665.03
  4. Step 4: Simplify right side
    1,329,431.85x = 858,629,549,089.48
  5. Step 5: Solve for x
    x = 858,629,549,089.48/1,329,431.85
  6. Step 6: Final answer
    x = 645,862.03

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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.