Finding the Fourth Proportional to 880,795.82, 1,215,491.55 and 478,390.70
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Solution
The fourth proportional to 880,795.82, 1,215,491.55 and 478,390.70 is: 660,175.54
Step by Step Solution
- Step 1: Write the proportion equation
880,795.82 : 1,215,491.55 = 478,390.70 : x - Step 2: Convert to fraction form
880,795.82/1,215,491.55 = 478,390.70/x - Step 3: Cross multiply
880,795.82x = 1,215,491.55 × 478,390.70 - Step 4: Simplify right side
880,795.82x = 581,479,853,448.59 - Step 5: Solve for x
x = 581,479,853,448.59/880,795.82 - Step 6: Final answer
x = 660,175.54
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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.