Finding the Fourth Proportional to 1,681,731.81, 2,320,757.51 and 917,790.84
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Solution
The fourth proportional to 1,681,731.81, 2,320,757.51 and 917,790.84 is: 1,266,533.68
Step by Step Solution
- Step 1: Write the proportion equation
1,681,731.81 : 2,320,757.51 = 917,790.84 : x - Step 2: Convert to fraction form
1,681,731.81/2,320,757.51 = 917,790.84/x - Step 3: Cross multiply
1,681,731.81x = 2,320,757.51 × 917,790.84 - Step 4: Simplify right side
1,681,731.81x = 2,129,969,968,346.47 - Step 5: Solve for x
x = 2,129,969,968,346.47/1,681,731.81 - Step 6: Final answer
x = 1,266,533.68
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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.