Finding the Fourth Proportional to 1,645,902.25, 2,271,348.43 and 920,762.08
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Solution
The fourth proportional to 1,645,902.25, 2,271,348.43 and 920,762.08 is: 1,270,653.53
Step by Step Solution
- Step 1: Write the proportion equation
1,645,902.25 : 2,271,348.43 = 920,762.08 : x - Step 2: Convert to fraction form
1,645,902.25/2,271,348.43 = 920,762.08/x - Step 3: Cross multiply
1,645,902.25x = 2,271,348.43 × 920,762.08 - Step 4: Simplify right side
1,645,902.25x = 2,091,371,505,348.82 - Step 5: Solve for x
x = 2,091,371,505,348.82/1,645,902.25 - Step 6: Final answer
x = 1,270,653.53
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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.