Finding the Fourth Proportional to 1,192,640.68, 1,645,960.58 and 890,309.80
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Solution
The fourth proportional to 1,192,640.68, 1,645,960.58 and 890,309.80 is: 1,228,714.45
Step by Step Solution
- Step 1: Write the proportion equation
1,192,640.68 : 1,645,960.58 = 890,309.80 : x - Step 2: Convert to fraction form
1,192,640.68/1,645,960.58 = 890,309.80/x - Step 3: Cross multiply
1,192,640.68x = 1,645,960.58 × 890,309.80 - Step 4: Simplify right side
1,192,640.68x = 1,465,414,834,787.68 - Step 5: Solve for x
x = 1,465,414,834,787.68/1,192,640.68 - Step 6: Final answer
x = 1,228,714.45
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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.