Finding the Fourth Proportional to 809,306.10, 1,212,987.15 and 335,747.70
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Solution
The fourth proportional to 809,306.10, 1,212,987.15 and 335,747.70 is: 503,218.31
Step by Step Solution
- Step 1: Write the proportion equation
809,306.10 : 1,212,987.15 = 335,747.70 : x - Step 2: Convert to fraction form
809,306.10/1,212,987.15 = 335,747.70/x - Step 3: Cross multiply
809,306.10x = 1,212,987.15 × 335,747.70 - Step 4: Simplify right side
809,306.10x = 407,257,645,742.06 - Step 5: Solve for x
x = 407,257,645,742.06/809,306.10 - Step 6: Final answer
x = 503,218.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.