Finding the Fourth Proportional to 684,444.12, 944,539.16 and 378,504.70
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Solution
The fourth proportional to 684,444.12, 944,539.16 and 378,504.70 is: 522,339.96
Step by Step Solution
- Step 1: Write the proportion equation
684,444.12 : 944,539.16 = 378,504.70 : x - Step 2: Convert to fraction form
684,444.12/944,539.16 = 378,504.70/x - Step 3: Cross multiply
684,444.12x = 944,539.16 × 378,504.70 - Step 4: Simplify right side
684,444.12x = 357,512,511,394.05 - Step 5: Solve for x
x = 357,512,511,394.05/684,444.12 - Step 6: Final answer
x = 522,339.96
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1.5x scale
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.