Home / 1,290,888.75-1,781,469.82-710,136.37

Finding the Fourth Proportional to 1,290,888.75, 1,781,469.82 and 710,136.37

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Solution

The fourth proportional to 1,290,888.75, 1,781,469.82 and 710,136.37 is: 980,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,888.75 : 1,781,469.82 = 710,136.37 : x
  2. Step 2: Convert to fraction form
    1,290,888.75/1,781,469.82 = 710,136.37/x
  3. Step 3: Cross multiply
    1,290,888.75x = 1,781,469.82 × 710,136.37
  4. Step 4: Simplify right side
    1,290,888.75x = 1,265,086,511,239.35
  5. Step 5: Solve for x
    x = 1,265,086,511,239.35/1,290,888.75
  6. Step 6: Final answer
    x = 980,012.04

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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.