Finding the Fourth Proportional to 815,277.98, 1,217,427.05 and 665,814.98
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Solution
The fourth proportional to 815,277.98, 1,217,427.05 and 665,814.98 is: 994,239.00
Step by Step Solution
- Step 1: Write the proportion equation
815,277.98 : 1,217,427.05 = 665,814.98 : x - Step 2: Convert to fraction form
815,277.98/1,217,427.05 = 665,814.98/x - Step 3: Cross multiply
815,277.98x = 1,217,427.05 × 665,814.98 - Step 4: Simplify right side
815,277.98x = 810,581,166,947.21 - Step 5: Solve for x
x = 810,581,166,947.21/815,277.98 - Step 6: Final answer
x = 994,239.00
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.