Finding the Fourth Proportional to 1,917,349.48, 2,645,997.68 and 1,057,965.10
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Solution
The fourth proportional to 1,917,349.48, 2,645,997.68 and 1,057,965.10 is: 1,460,022.41
Step by Step Solution
- Step 1: Write the proportion equation
1,917,349.48 : 2,645,997.68 = 1,057,965.10 : x - Step 2: Convert to fraction form
1,917,349.48/2,645,997.68 = 1,057,965.10/x - Step 3: Cross multiply
1,917,349.48x = 2,645,997.68 × 1,057,965.10 - Step 4: Simplify right side
1,917,349.48x = 2,799,373,200,120.97 - Step 5: Solve for x
x = 2,799,373,200,120.97/1,917,349.48 - Step 6: Final answer
x = 1,460,022.41
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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.