Finding the Fourth Proportional to 3,587,539.82, 5,381,286.91 and 1,313,222.63
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Solution
The fourth proportional to 3,587,539.82, 5,381,286.91 and 1,313,222.63 is: 1,969,825.59
Step by Step Solution
- Step 1: Write the proportion equation
3,587,539.82 : 5,381,286.91 = 1,313,222.63 : x - Step 2: Convert to fraction form
3,587,539.82/5,381,286.91 = 1,313,222.63/x - Step 3: Cross multiply
3,587,539.82x = 5,381,286.91 × 1,313,222.63 - Step 4: Simplify right side
3,587,539.82x = 7,066,827,718,545.28 - Step 5: Solve for x
x = 7,066,827,718,545.28/3,587,539.82 - Step 6: Final answer
x = 1,969,825.59
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1.5x scale
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.