Finding the Fourth Proportional to 854,564.94, 1,178,943.36 and 491,902.02
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Solution
The fourth proportional to 854,564.94, 1,178,943.36 and 491,902.02 is: 678,619.72
Step by Step Solution
- Step 1: Write the proportion equation
854,564.94 : 1,178,943.36 = 491,902.02 : x - Step 2: Convert to fraction form
854,564.94/1,178,943.36 = 491,902.02/x - Step 3: Cross multiply
854,564.94x = 1,178,943.36 × 491,902.02 - Step 4: Simplify right side
854,564.94x = 579,924,620,249.59 - Step 5: Solve for x
x = 579,924,620,249.59/854,564.94 - Step 6: Final answer
x = 678,619.72
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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.