Home / 1,391,124.36-1,919,722.74-755,220.36

Finding the Fourth Proportional to 1,391,124.36, 1,919,722.74 and 755,220.36

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Solution

The fourth proportional to 1,391,124.36, 1,919,722.74 and 755,220.36 is: 1,042,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,124.36 : 1,919,722.74 = 755,220.36 : x
  2. Step 2: Convert to fraction form
    1,391,124.36/1,919,722.74 = 755,220.36/x
  3. Step 3: Cross multiply
    1,391,124.36x = 1,919,722.74 × 755,220.36
  4. Step 4: Simplify right side
    1,391,124.36x = 1,449,813,698,802.99
  5. Step 5: Solve for x
    x = 1,449,813,698,802.99/1,391,124.36
  6. Step 6: Final answer
    x = 1,042,188.42

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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.