Finding the Fourth Proportional to 702,960.70, 1,054,894.65 and 387,643.90
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Solution
The fourth proportional to 702,960.70, 1,054,894.65 and 387,643.90 is: 581,715.99
Step by Step Solution
- Step 1: Write the proportion equation
702,960.70 : 1,054,894.65 = 387,643.90 : x - Step 2: Convert to fraction form
702,960.70/1,054,894.65 = 387,643.90/x - Step 3: Cross multiply
702,960.70x = 1,054,894.65 × 387,643.90 - Step 4: Simplify right side
702,960.70x = 408,923,476,215.14 - Step 5: Solve for x
x = 408,923,476,215.14/702,960.70 - Step 6: Final answer
x = 581,715.99
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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.