Home / 1,383,383.98-1,909,022.88-763,213.96

Finding the Fourth Proportional to 1,383,383.98, 1,909,022.88 and 763,213.96

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Solution

The fourth proportional to 1,383,383.98, 1,909,022.88 and 763,213.96 is: 1,053,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,383.98 : 1,909,022.88 = 763,213.96 : x
  2. Step 2: Convert to fraction form
    1,383,383.98/1,909,022.88 = 763,213.96/x
  3. Step 3: Cross multiply
    1,383,383.98x = 1,909,022.88 × 763,213.96
  4. Step 4: Simplify right side
    1,383,383.98x = 1,456,992,911,975.40
  5. Step 5: Solve for x
    x = 1,456,992,911,975.40/1,383,383.98
  6. Step 6: Final answer
    x = 1,053,209.33

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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.