Finding the Fourth Proportional to 815,499.88, 1,125,221.96 and 471,212.62
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Solution
The fourth proportional to 815,499.88, 1,125,221.96 and 471,212.62 is: 650,176.41
Step by Step Solution
- Step 1: Write the proportion equation
815,499.88 : 1,125,221.96 = 471,212.62 : x - Step 2: Convert to fraction form
815,499.88/1,125,221.96 = 471,212.62/x - Step 3: Cross multiply
815,499.88x = 1,125,221.96 × 471,212.62 - Step 4: Simplify right side
815,499.88x = 530,218,787,853.14 - Step 5: Solve for x
x = 530,218,787,853.14/815,499.88 - Step 6: Final answer
x = 650,176.41
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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.