Finding the Fourth Proportional to 854,104.40, 1,178,663.64 and 472,131.08
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Solution
The fourth proportional to 854,104.40, 1,178,663.64 and 472,131.08 is: 651,540.65
Step by Step Solution
- Step 1: Write the proportion equation
854,104.40 : 1,178,663.64 = 472,131.08 : x - Step 2: Convert to fraction form
854,104.40/1,178,663.64 = 472,131.08/x - Step 3: Cross multiply
854,104.40x = 1,178,663.64 × 472,131.08 - Step 4: Simplify right side
854,104.40x = 556,483,737,309.93 - Step 5: Solve for x
x = 556,483,737,309.93/854,104.40 - Step 6: Final answer
x = 651,540.65
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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.