Home / 1,421,517.56-2,131,961.96-410,419.68

Finding the Fourth Proportional to 1,421,517.56, 2,131,961.96 and 410,419.68

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Solution

The fourth proportional to 1,421,517.56, 2,131,961.96 and 410,419.68 is: 615,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,517.56 : 2,131,961.96 = 410,419.68 : x
  2. Step 2: Convert to fraction form
    1,421,517.56/2,131,961.96 = 410,419.68/x
  3. Step 3: Cross multiply
    1,421,517.56x = 2,131,961.96 × 410,419.68
  4. Step 4: Simplify right side
    1,421,517.56x = 874,999,145,395.37
  5. Step 5: Solve for x
    x = 874,999,145,395.37/1,421,517.56
  6. Step 6: Final answer
    x = 615,538.75

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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.