Finding the Fourth Proportional to 1,378,702.98, 1,902,564.43 and 766,838.43
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Solution
The fourth proportional to 1,378,702.98, 1,902,564.43 and 766,838.43 is: 1,058,211.62
Step by Step Solution
- Step 1: Write the proportion equation
1,378,702.98 : 1,902,564.43 = 766,838.43 : x - Step 2: Convert to fraction form
1,378,702.98/1,902,564.43 = 766,838.43/x - Step 3: Cross multiply
1,378,702.98x = 1,902,564.43 × 766,838.43 - Step 4: Simplify right side
1,378,702.98x = 1,458,959,520,475.05 - Step 5: Solve for x
x = 1,458,959,520,475.05/1,378,702.98 - Step 6: Final answer
x = 1,058,211.62
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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.