Home / 1,380,676.84-2,071,134.94-421,348.44

Finding the Fourth Proportional to 1,380,676.84, 2,071,134.94 and 421,348.44

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Solution

The fourth proportional to 1,380,676.84, 2,071,134.94 and 421,348.44 is: 632,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,676.84 : 2,071,134.94 = 421,348.44 : x
  2. Step 2: Convert to fraction form
    1,380,676.84/2,071,134.94 = 421,348.44/x
  3. Step 3: Cross multiply
    1,380,676.84x = 2,071,134.94 × 421,348.44
  4. Step 4: Simplify right side
    1,380,676.84x = 872,669,475,998.49
  5. Step 5: Solve for x
    x = 872,669,475,998.49/1,380,676.84
  6. Step 6: Final answer
    x = 632,059.18

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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.