Home / 1,419,485.32-2,129,563.59-459,939.34

Finding the Fourth Proportional to 1,419,485.32, 2,129,563.59 and 459,939.34

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Solution

The fourth proportional to 1,419,485.32, 2,129,563.59 and 459,939.34 is: 690,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,485.32 : 2,129,563.59 = 459,939.34 : x
  2. Step 2: Convert to fraction form
    1,419,485.32/2,129,563.59 = 459,939.34/x
  3. Step 3: Cross multiply
    1,419,485.32x = 2,129,563.59 × 459,939.34
  4. Step 4: Simplify right side
    1,419,485.32x = 979,470,072,072.63
  5. Step 5: Solve for x
    x = 979,470,072,072.63/1,419,485.32
  6. Step 6: Final answer
    x = 690,017.75

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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.