Finding the Fourth Proportional to 1,117,936.90, 1,542,702.09 and 608,638.18
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Solution
The fourth proportional to 1,117,936.90, 1,542,702.09 and 608,638.18 is: 839,893.01
Step by Step Solution
- Step 1: Write the proportion equation
1,117,936.90 : 1,542,702.09 = 608,638.18 : x - Step 2: Convert to fraction form
1,117,936.90/1,542,702.09 = 608,638.18/x - Step 3: Cross multiply
1,117,936.90x = 1,542,702.09 × 608,638.18 - Step 4: Simplify right side
1,117,936.90x = 938,947,392,339.80 - Step 5: Solve for x
x = 938,947,392,339.80/1,117,936.90 - Step 6: Final answer
x = 839,893.01
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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.