Home / 1,421,419.11-2,131,815.48-410,321.44

Finding the Fourth Proportional to 1,421,419.11, 2,131,815.48 and 410,321.44

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Solution

The fourth proportional to 1,421,419.11, 2,131,815.48 and 410,321.44 is: 615,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,419.11 : 2,131,815.48 = 410,321.44 : x
  2. Step 2: Convert to fraction form
    1,421,419.11/2,131,815.48 = 410,321.44/x
  3. Step 3: Cross multiply
    1,421,419.11x = 2,131,815.48 × 410,321.44
  4. Step 4: Simplify right side
    1,421,419.11x = 874,729,597,567.89
  5. Step 5: Solve for x
    x = 874,729,597,567.89/1,421,419.11
  6. Step 6: Final answer
    x = 615,391.75

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1.5x scale

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.