Finding the Fourth Proportional to 854,132.51, 1,178,646.80 and 491,497.88
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Solution
The fourth proportional to 854,132.51, 1,178,646.80 and 491,497.88 is: 678,234.80
Step by Step Solution
- Step 1: Write the proportion equation
854,132.51 : 1,178,646.80 = 491,497.88 : x - Step 2: Convert to fraction form
854,132.51/1,178,646.80 = 491,497.88/x - Step 3: Cross multiply
854,132.51x = 1,178,646.80 × 491,497.88 - Step 4: Simplify right side
854,132.51x = 579,302,395,118.06 - Step 5: Solve for x
x = 579,302,395,118.06/854,132.51 - Step 6: Final answer
x = 678,234.80
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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.