Finding the Fourth Proportional to 638,482.40, 881,095.20 and 352,029.14
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Solution
The fourth proportional to 638,482.40, 881,095.20 and 352,029.14 is: 485,794.42
Step by Step Solution
- Step 1: Write the proportion equation
638,482.40 : 881,095.20 = 352,029.14 : x - Step 2: Convert to fraction form
638,482.40/881,095.20 = 352,029.14/x - Step 3: Cross multiply
638,482.40x = 881,095.20 × 352,029.14 - Step 4: Simplify right side
638,482.40x = 310,171,185,514.13 - Step 5: Solve for x
x = 310,171,185,514.13/638,482.40 - Step 6: Final answer
x = 485,794.42
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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.