Finding the Fourth Proportional to 390,578.42, 585,863.36 and 296,387.08
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Solution
The fourth proportional to 390,578.42, 585,863.36 and 296,387.08 is: 444,577.38
Step by Step Solution
- Step 1: Write the proportion equation
390,578.42 : 585,863.36 = 296,387.08 : x - Step 2: Convert to fraction form
390,578.42/585,863.36 = 296,387.08/x - Step 3: Cross multiply
390,578.42x = 585,863.36 × 296,387.08 - Step 4: Simplify right side
390,578.42x = 173,642,330,549.39 - Step 5: Solve for x
x = 173,642,330,549.39/390,578.42 - Step 6: Final answer
x = 444,577.38
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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.