Finding the Fourth Proportional to 757,811.84, 1,136,930.99 and 331,385.11
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Solution
The fourth proportional to 757,811.84, 1,136,930.99 and 331,385.11 is: 497,170.91
Step by Step Solution
- Step 1: Write the proportion equation
757,811.84 : 1,136,930.99 = 331,385.11 : x - Step 2: Convert to fraction form
757,811.84/1,136,930.99 = 331,385.11/x - Step 3: Cross multiply
757,811.84x = 1,136,930.99 × 331,385.11 - Step 4: Simplify right side
757,811.84x = 376,761,996,684.31 - Step 5: Solve for x
x = 376,761,996,684.31/757,811.84 - Step 6: Final answer
x = 497,170.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.