Home / 1,380,966.84-2,071,450.41-421,427.48

Finding the Fourth Proportional to 1,380,966.84, 2,071,450.41 and 421,427.48

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Solution

The fourth proportional to 1,380,966.84, 2,071,450.41 and 421,427.48 is: 632,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,966.84 : 2,071,450.41 = 421,427.48 : x
  2. Step 2: Convert to fraction form
    1,380,966.84/2,071,450.41 = 421,427.48/x
  3. Step 3: Cross multiply
    1,380,966.84x = 2,071,450.41 × 421,427.48
  4. Step 4: Simplify right side
    1,380,966.84x = 872,966,126,231.27
  5. Step 5: Solve for x
    x = 872,966,126,231.27/1,380,966.84
  6. Step 6: Final answer
    x = 632,141.27

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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.