Finding the Fourth Proportional to 684,305.12, 944,335.40 and 378,394.88
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Solution
The fourth proportional to 684,305.12, 944,335.40 and 378,394.88 is: 522,181.80
Step by Step Solution
- Step 1: Write the proportion equation
684,305.12 : 944,335.40 = 378,394.88 : x - Step 2: Convert to fraction form
684,305.12/944,335.40 = 378,394.88/x - Step 3: Cross multiply
684,305.12x = 944,335.40 × 378,394.88 - Step 4: Simplify right side
684,305.12x = 357,331,680,362.75 - Step 5: Solve for x
x = 357,331,680,362.75/684,305.12 - Step 6: Final answer
x = 522,181.80
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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.