Home / 2,191,905.80-3,024,923.42-1,225,036.09

Finding the Fourth Proportional to 2,191,905.80, 3,024,923.42 and 1,225,036.09

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Solution

The fourth proportional to 2,191,905.80, 3,024,923.42 and 1,225,036.09 is: 1,690,602.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,905.80 : 3,024,923.42 = 1,225,036.09 : x
  2. Step 2: Convert to fraction form
    2,191,905.80/3,024,923.42 = 1,225,036.09/x
  3. Step 3: Cross multiply
    2,191,905.80x = 3,024,923.42 × 1,225,036.09
  4. Step 4: Simplify right side
    2,191,905.80x = 3,705,640,359,853.56
  5. Step 5: Solve for x
    x = 3,705,640,359,853.56/2,191,905.80
  6. Step 6: Final answer
    x = 1,690,602.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.