Finding the Fourth Proportional to 1,670,398.38, 2,305,149.74 and 906,451.94
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Solution
The fourth proportional to 1,670,398.38, 2,305,149.74 and 906,451.94 is: 1,250,903.65
Step by Step Solution
- Step 1: Write the proportion equation
1,670,398.38 : 2,305,149.74 = 906,451.94 : x - Step 2: Convert to fraction form
1,670,398.38/2,305,149.74 = 906,451.94/x - Step 3: Cross multiply
1,670,398.38x = 2,305,149.74 × 906,451.94 - Step 4: Simplify right side
1,670,398.38x = 2,089,507,437,755.49 - Step 5: Solve for x
x = 2,089,507,437,755.49/1,670,398.38 - Step 6: Final answer
x = 1,250,903.65
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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.