Finding the Fourth Proportional to 875,394.09, 1,208,136.72 and 513,122.33
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Solution
The fourth proportional to 875,394.09, 1,208,136.72 and 513,122.33 is: 708,163.26
Step by Step Solution
- Step 1: Write the proportion equation
875,394.09 : 1,208,136.72 = 513,122.33 : x - Step 2: Convert to fraction form
875,394.09/1,208,136.72 = 513,122.33/x - Step 3: Cross multiply
875,394.09x = 1,208,136.72 × 513,122.33 - Step 4: Simplify right side
875,394.09x = 619,921,928,724.96 - Step 5: Solve for x
x = 619,921,928,724.96/875,394.09 - Step 6: Final answer
x = 708,163.26
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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.