Finding the Fourth Proportional to 1,101,248.68, 1,519,723.74 and 642,678.52
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Solution
The fourth proportional to 1,101,248.68, 1,519,723.74 and 642,678.52 is: 886,896.69
Step by Step Solution
- Step 1: Write the proportion equation
1,101,248.68 : 1,519,723.74 = 642,678.52 : x - Step 2: Convert to fraction form
1,101,248.68/1,519,723.74 = 642,678.52/x - Step 3: Cross multiply
1,101,248.68x = 1,519,723.74 × 642,678.52 - Step 4: Simplify right side
1,101,248.68x = 976,693,804,032.07 - Step 5: Solve for x
x = 976,693,804,032.07/1,101,248.68 - Step 6: Final answer
x = 886,896.69
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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.