Finding the Fourth Proportional to 638,585.32, 958,251.42 and 354,515.08
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Solution
The fourth proportional to 638,585.32, 958,251.42 and 354,515.08 is: 531,979.94
Step by Step Solution
- Step 1: Write the proportion equation
638,585.32 : 958,251.42 = 354,515.08 : x - Step 2: Convert to fraction form
638,585.32/958,251.42 = 354,515.08/x - Step 3: Cross multiply
638,585.32x = 958,251.42 × 354,515.08 - Step 4: Simplify right side
638,585.32x = 339,714,578,821.41 - Step 5: Solve for x
x = 339,714,578,821.41/638,585.32 - Step 6: Final answer
x = 531,979.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.