Finding the Fourth Proportional to 3,603,988.90, 4,973,506.62 and 1,972,395.31
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Solution
The fourth proportional to 3,603,988.90, 4,973,506.62 and 1,972,395.31 is: 2,721,906.59
Step by Step Solution
- Step 1: Write the proportion equation
3,603,988.90 : 4,973,506.62 = 1,972,395.31 : x - Step 2: Convert to fraction form
3,603,988.90/4,973,506.62 = 1,972,395.31/x - Step 3: Cross multiply
3,603,988.90x = 4,973,506.62 × 1,972,395.31 - Step 4: Simplify right side
3,603,988.90x = 9,809,721,131,541.95 - Step 5: Solve for x
x = 9,809,721,131,541.95/3,603,988.90 - Step 6: Final answer
x = 2,721,906.59
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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.