Finding the Fourth Proportional to 867,888.82, 1,197,678.70 and 485,921.98
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Solution
The fourth proportional to 867,888.82, 1,197,678.70 and 485,921.98 is: 670,567.93
Step by Step Solution
- Step 1: Write the proportion equation
867,888.82 : 1,197,678.70 = 485,921.98 : x - Step 2: Convert to fraction form
867,888.82/1,197,678.70 = 485,921.98/x - Step 3: Cross multiply
867,888.82x = 1,197,678.70 × 485,921.98 - Step 4: Simplify right side
867,888.82x = 581,978,405,307.83 - Step 5: Solve for x
x = 581,978,405,307.83/867,888.82 - Step 6: Final answer
x = 670,567.93
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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.