Finding the Fourth Proportional to 1,691,939.94, 2,334,913.56 and 927,991.68
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Solution
The fourth proportional to 1,691,939.94, 2,334,913.56 and 927,991.68 is: 1,280,648.51
Step by Step Solution
- Step 1: Write the proportion equation
1,691,939.94 : 2,334,913.56 = 927,991.68 : x - Step 2: Convert to fraction form
1,691,939.94/2,334,913.56 = 927,991.68/x - Step 3: Cross multiply
1,691,939.94x = 2,334,913.56 × 927,991.68 - Step 4: Simplify right side
1,691,939.94x = 2,166,780,357,199.18 - Step 5: Solve for x
x = 2,166,780,357,199.18/1,691,939.94 - Step 6: Final answer
x = 1,280,648.51
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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.