Finding the Fourth Proportional to 992,817.14, 1,487,917.49 and 393,451.56
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Solution
The fourth proportional to 992,817.14, 1,487,917.49 and 393,451.56 is: 589,658.90
Step by Step Solution
- Step 1: Write the proportion equation
992,817.14 : 1,487,917.49 = 393,451.56 : x - Step 2: Convert to fraction form
992,817.14/1,487,917.49 = 393,451.56/x - Step 3: Cross multiply
992,817.14x = 1,487,917.49 × 393,451.56 - Step 4: Simplify right side
992,817.14x = 585,423,455,624.53 - Step 5: Solve for x
x = 585,423,455,624.53/992,817.14 - Step 6: Final answer
x = 589,658.90
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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.