Finding the Fourth Proportional to 636,441.92, 878,266.24 and 349,944.96
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Solution
The fourth proportional to 636,441.92, 878,266.24 and 349,944.96 is: 482,911.06
Step by Step Solution
- Step 1: Write the proportion equation
636,441.92 : 878,266.24 = 349,944.96 : x - Step 2: Convert to fraction form
636,441.92/878,266.24 = 349,944.96/x - Step 3: Cross multiply
636,441.92x = 878,266.24 × 349,944.96 - Step 4: Simplify right side
636,441.92x = 307,344,844,226.15 - Step 5: Solve for x
x = 307,344,844,226.15/636,441.92 - Step 6: Final answer
x = 482,911.06
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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.