Finding the Fourth Proportional to 961,218.40, 1,326,427.84 and 531,472.80
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Solution
The fourth proportional to 961,218.40, 1,326,427.84 and 531,472.80 is: 733,402.85
Step by Step Solution
- Step 1: Write the proportion equation
961,218.40 : 1,326,427.84 = 531,472.80 : x - Step 2: Convert to fraction form
961,218.40/1,326,427.84 = 531,472.80/x - Step 3: Cross multiply
961,218.40x = 1,326,427.84 × 531,472.80 - Step 4: Simplify right side
961,218.40x = 704,960,318,122.75 - Step 5: Solve for x
x = 704,960,318,122.75/961,218.40 - Step 6: Final answer
x = 733,402.85
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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.