Finding the Fourth Proportional to 1,117,937.40, 1,542,702.78 and 608,638.68
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Solution
The fourth proportional to 1,117,937.40, 1,542,702.78 and 608,638.68 is: 839,893.70
Step by Step Solution
- Step 1: Write the proportion equation
1,117,937.40 : 1,542,702.78 = 608,638.68 : x - Step 2: Convert to fraction form
1,117,937.40/1,542,702.78 = 608,638.68/x - Step 3: Cross multiply
1,117,937.40x = 1,542,702.78 × 608,638.68 - Step 4: Simplify right side
1,117,937.40x = 938,948,583,651.53 - Step 5: Solve for x
x = 938,948,583,651.53/1,117,937.40 - Step 6: Final answer
x = 839,893.70
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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.