Finding the Fourth Proportional to 718,557.84, 991,576.42 and 412,418.75
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Solution
The fourth proportional to 718,557.84, 991,576.42 and 412,418.75 is: 569,118.70
Step by Step Solution
- Step 1: Write the proportion equation
718,557.84 : 991,576.42 = 412,418.75 : x - Step 2: Convert to fraction form
718,557.84/991,576.42 = 412,418.75/x - Step 3: Cross multiply
718,557.84x = 991,576.42 × 412,418.75 - Step 4: Simplify right side
718,557.84x = 408,944,701,676.95 - Step 5: Solve for x
x = 408,944,701,676.95/718,557.84 - Step 6: Final answer
x = 569,118.70
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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.