Finding the Fourth Proportional to 1,290,706.49, 1,936,186.25 and 470,268.18
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Solution
The fourth proportional to 1,290,706.49, 1,936,186.25 and 470,268.18 is: 705,448.36
Step by Step Solution
- Step 1: Write the proportion equation
1,290,706.49 : 1,936,186.25 = 470,268.18 : x - Step 2: Convert to fraction form
1,290,706.49/1,936,186.25 = 470,268.18/x - Step 3: Cross multiply
1,290,706.49x = 1,936,186.25 × 470,268.18 - Step 4: Simplify right side
1,290,706.49x = 910,526,781,577.18 - Step 5: Solve for x
x = 910,526,781,577.18/1,290,706.49 - Step 6: Final answer
x = 705,448.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.