Finding the Fourth Proportional to 743,908.84, 1,115,443.08 and 680,431.12
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Solution
The fourth proportional to 743,908.84, 1,115,443.08 and 680,431.12 is: 1,020,262.35
Step by Step Solution
- Step 1: Write the proportion equation
743,908.84 : 1,115,443.08 = 680,431.12 : x - Step 2: Convert to fraction form
743,908.84/1,115,443.08 = 680,431.12/x - Step 3: Cross multiply
743,908.84x = 1,115,443.08 × 680,431.12 - Step 4: Simplify right side
743,908.84x = 758,982,184,220.65 - Step 5: Solve for x
x = 758,982,184,220.65/743,908.84 - Step 6: Final answer
x = 1,020,262.35
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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.