Finding the Fourth Proportional to 854,307.18, 1,178,994.42 and 491,722.02
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Solution
The fourth proportional to 854,307.18, 1,178,994.42 and 491,722.02 is: 678,605.46
Step by Step Solution
- Step 1: Write the proportion equation
854,307.18 : 1,178,994.42 = 491,722.02 : x - Step 2: Convert to fraction form
854,307.18/1,178,994.42 = 491,722.02/x - Step 3: Cross multiply
854,307.18x = 1,178,994.42 × 491,722.02 - Step 4: Simplify right side
854,307.18x = 579,737,517,771.13 - Step 5: Solve for x
x = 579,737,517,771.13/854,307.18 - Step 6: Final answer
x = 678,605.46
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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.