Finding the Fourth Proportional to 1,938,761.93, 2,673,749.66 and 1,213,675.65
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Solution
The fourth proportional to 1,938,761.93, 2,673,749.66 and 1,213,675.65 is: 1,673,782.01
Step by Step Solution
- Step 1: Write the proportion equation
1,938,761.93 : 2,673,749.66 = 1,213,675.65 : x - Step 2: Convert to fraction form
1,938,761.93/2,673,749.66 = 1,213,675.65/x - Step 3: Cross multiply
1,938,761.93x = 2,673,749.66 × 1,213,675.65 - Step 4: Simplify right side
1,938,761.93x = 3,245,064,850,469.40 - Step 5: Solve for x
x = 3,245,064,850,469.40/1,938,761.93 - Step 6: Final answer
x = 1,673,782.01
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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.