Finding the Fourth Proportional to 684,621.46, 944,704.88 and 378,649.23
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Solution
The fourth proportional to 684,621.46, 944,704.88 and 378,649.23 is: 522,495.71
Step by Step Solution
- Step 1: Write the proportion equation
684,621.46 : 944,704.88 = 378,649.23 : x - Step 2: Convert to fraction form
684,621.46/944,704.88 = 378,649.23/x - Step 3: Cross multiply
684,621.46x = 944,704.88 × 378,649.23 - Step 4: Simplify right side
684,621.46x = 357,711,775,389.24 - Step 5: Solve for x
x = 357,711,775,389.24/684,621.46 - Step 6: Final answer
x = 522,495.71
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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.