Finding the Fourth Proportional to 492,207.76, 679,322.64 and 298,647.28
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Solution
The fourth proportional to 492,207.76, 679,322.64 and 298,647.28 is: 412,179.32
Step by Step Solution
- Step 1: Write the proportion equation
492,207.76 : 679,322.64 = 298,647.28 : x - Step 2: Convert to fraction form
492,207.76/679,322.64 = 298,647.28/x - Step 3: Cross multiply
492,207.76x = 679,322.64 × 298,647.28 - Step 4: Simplify right side
492,207.76x = 202,877,858,678.42 - Step 5: Solve for x
x = 202,877,858,678.42/492,207.76 - Step 6: Final answer
x = 412,179.32
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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.