Finding the Fourth Proportional to 3,478,998.30, 5,218,497.45 and 2,058,323.10
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Solution
The fourth proportional to 3,478,998.30, 5,218,497.45 and 2,058,323.10 is: 3,087,484.65
Step by Step Solution
- Step 1: Write the proportion equation
3,478,998.30 : 5,218,497.45 = 2,058,323.10 : x - Step 2: Convert to fraction form
3,478,998.30/5,218,497.45 = 2,058,323.10/x - Step 3: Cross multiply
3,478,998.30x = 5,218,497.45 × 2,058,323.10 - Step 4: Simplify right side
3,478,998.30x = 10,741,353,848,626.10 - Step 5: Solve for x
x = 10,741,353,848,626.10/3,478,998.30 - Step 6: Final answer
x = 3,087,484.65
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Double scale
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Similar ratio
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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.