Finding the Fourth Proportional to 669,085.62, 923,276.79 and 397,106.70
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Solution
The fourth proportional to 669,085.62, 923,276.79 and 397,106.70 is: 547,970.83
Step by Step Solution
- Step 1: Write the proportion equation
669,085.62 : 923,276.79 = 397,106.70 : x - Step 2: Convert to fraction form
669,085.62/923,276.79 = 397,106.70/x - Step 3: Cross multiply
669,085.62x = 923,276.79 × 397,106.70 - Step 4: Simplify right side
669,085.62x = 366,639,399,263.49 - Step 5: Solve for x
x = 366,639,399,263.49/669,085.62 - Step 6: Final answer
x = 547,970.83
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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.