Finding the Fourth Proportional to 812,576.40, 1,218,864.60 and 611,809.80
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Solution
The fourth proportional to 812,576.40, 1,218,864.60 and 611,809.80 is: 917,714.70
Step by Step Solution
- Step 1: Write the proportion equation
812,576.40 : 1,218,864.60 = 611,809.80 : x - Step 2: Convert to fraction form
812,576.40/1,218,864.60 = 611,809.80/x - Step 3: Cross multiply
812,576.40x = 1,218,864.60 × 611,809.80 - Step 4: Simplify right side
812,576.40x = 745,713,307,153.08 - Step 5: Solve for x
x = 745,713,307,153.08/812,576.40 - Step 6: Final answer
x = 917,714.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.