Finding the Fourth Proportional to 684,316.40, 944,318.40 and 378,375.08
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Solution
The fourth proportional to 684,316.40, 944,318.40 and 378,375.08 is: 522,136.47
Step by Step Solution
- Step 1: Write the proportion equation
684,316.40 : 944,318.40 = 378,375.08 : x - Step 2: Convert to fraction form
684,316.40/944,318.40 = 378,375.08/x - Step 3: Cross multiply
684,316.40x = 944,318.40 × 378,375.08 - Step 4: Simplify right side
684,316.40x = 357,306,550,145.47 - Step 5: Solve for x
x = 357,306,550,145.47/684,316.40 - Step 6: Final answer
x = 522,136.47
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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.