Finding the Fourth Proportional to 472,717, 708,677.79 and 219,869.02
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Solution
The fourth proportional to 472,717, 708,677.79 and 219,869.02 is: 329,618.55
Step by Step Solution
- Step 1: Write the proportion equation
472,717 : 708,677.79 = 219,869.02 : x - Step 2: Convert to fraction form
472,717/708,677.79 = 219,869.02/x - Step 3: Cross multiply
472,717x = 708,677.79 × 219,869.02 - Step 4: Simplify right side
472,717x = 155,816,291,183.07 - Step 5: Solve for x
x = 155,816,291,183.07/472,717 - Step 6: Final answer
x = 329,618.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.