Finding the Fourth Proportional to 743,910.84, 1,115,446.08 and 680,433.12
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Solution
The fourth proportional to 743,910.84, 1,115,446.08 and 680,433.12 is: 1,020,265.35
Step by Step Solution
- Step 1: Write the proportion equation
743,910.84 : 1,115,446.08 = 680,433.12 : x - Step 2: Convert to fraction form
743,910.84/1,115,446.08 = 680,433.12/x - Step 3: Cross multiply
743,910.84x = 1,115,446.08 × 680,433.12 - Step 4: Simplify right side
743,910.84x = 758,986,456,406.17 - Step 5: Solve for x
x = 758,986,456,406.17/743,910.84 - Step 6: Final answer
x = 1,020,265.35
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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.