Finding the Fourth Proportional to 809,318.40, 1,212,519.60 and 387,664.80
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Solution
The fourth proportional to 809,318.40, 1,212,519.60 and 387,664.80 is: 580,798.82
Step by Step Solution
- Step 1: Write the proportion equation
809,318.40 : 1,212,519.60 = 387,664.80 : x - Step 2: Convert to fraction form
809,318.40/1,212,519.60 = 387,664.80/x - Step 3: Cross multiply
809,318.40x = 1,212,519.60 × 387,664.80 - Step 4: Simplify right side
809,318.40x = 470,051,168,230.08 - Step 5: Solve for x
x = 470,051,168,230.08/809,318.40 - Step 6: Final answer
x = 580,798.82
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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.