Finding the Fourth Proportional to 1,681,841.70, 2,320,213.42 and 1,028,496.28
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Solution
The fourth proportional to 1,681,841.70, 2,320,213.42 and 1,028,496.28 is: 1,418,879.60
Step by Step Solution
- Step 1: Write the proportion equation
1,681,841.70 : 2,320,213.42 = 1,028,496.28 : x - Step 2: Convert to fraction form
1,681,841.70/2,320,213.42 = 1,028,496.28/x - Step 3: Cross multiply
1,681,841.70x = 2,320,213.42 × 1,028,496.28 - Step 4: Simplify right side
1,681,841.70x = 2,386,330,871,276.08 - Step 5: Solve for x
x = 2,386,330,871,276.08/1,681,841.70 - Step 6: Final answer
x = 1,418,879.60
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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.