Finding the Fourth Proportional to 521,853.21, 720,191.79 and 292,398.03
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Solution
The fourth proportional to 521,853.21, 720,191.79 and 292,398.03 is: 403,528.53
Step by Step Solution
- Step 1: Write the proportion equation
521,853.21 : 720,191.79 = 292,398.03 : x - Step 2: Convert to fraction form
521,853.21/720,191.79 = 292,398.03/x - Step 3: Cross multiply
521,853.21x = 720,191.79 × 292,398.03 - Step 4: Simplify right side
521,853.21x = 210,582,660,618.17 - Step 5: Solve for x
x = 210,582,660,618.17/521,853.21 - Step 6: Final answer
x = 403,528.53
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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.