Finding the Fourth Proportional to 684,479.26, 944,579.44 and 393,984.68
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Solution
The fourth proportional to 684,479.26, 944,579.44 and 393,984.68 is: 543,697.74
Step by Step Solution
- Step 1: Write the proportion equation
684,479.26 : 944,579.44 = 393,984.68 : x - Step 2: Convert to fraction form
684,479.26/944,579.44 = 393,984.68/x - Step 3: Cross multiply
684,479.26x = 944,579.44 × 393,984.68 - Step 4: Simplify right side
684,479.26x = 372,149,824,172.56 - Step 5: Solve for x
x = 372,149,824,172.56/684,479.26 - Step 6: Final answer
x = 543,697.74
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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.