Finding the Fourth Proportional to 1,253,102.98, 1,729,283.49 and 680,143.54
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Solution
The fourth proportional to 1,253,102.98, 1,729,283.49 and 680,143.54 is: 938,598.83
Step by Step Solution
- Step 1: Write the proportion equation
1,253,102.98 : 1,729,283.49 = 680,143.54 : x - Step 2: Convert to fraction form
1,253,102.98/1,729,283.49 = 680,143.54/x - Step 3: Cross multiply
1,253,102.98x = 1,729,283.49 × 680,143.54 - Step 4: Simplify right side
1,253,102.98x = 1,176,160,994,552.15 - Step 5: Solve for x
x = 1,176,160,994,552.15/1,253,102.98 - Step 6: Final answer
x = 938,598.83
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1.5x scale
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.