Finding the Fourth Proportional to 1,259,326.98, 1,737,907.92 and 686,404.26
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Solution
The fourth proportional to 1,259,326.98, 1,737,907.92 and 686,404.26 is: 947,257.88
Step by Step Solution
- Step 1: Write the proportion equation
1,259,326.98 : 1,737,907.92 = 686,404.26 : x - Step 2: Convert to fraction form
1,259,326.98/1,737,907.92 = 686,404.26/x - Step 3: Cross multiply
1,259,326.98x = 1,737,907.92 × 686,404.26 - Step 4: Simplify right side
1,259,326.98x = 1,192,907,399,775.74 - Step 5: Solve for x
x = 1,192,907,399,775.74/1,259,326.98 - Step 6: Final answer
x = 947,257.88
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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.