Finding the Fourth Proportional to 812,304.80, 1,218,121.84 and 306,779.76
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Solution
The fourth proportional to 812,304.80, 1,218,121.84 and 306,779.76 is: 460,042.99
Step by Step Solution
- Step 1: Write the proportion equation
812,304.80 : 1,218,121.84 = 306,779.76 : x - Step 2: Convert to fraction form
812,304.80/1,218,121.84 = 306,779.76/x - Step 3: Cross multiply
812,304.80x = 1,218,121.84 × 306,779.76 - Step 4: Simplify right side
812,304.80x = 373,695,125,725.96 - Step 5: Solve for x
x = 373,695,125,725.96/812,304.80 - Step 6: Final answer
x = 460,042.99
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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.