Finding the Fourth Proportional to 642,080.79, 886,060.62 and 355,594.73
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Solution
The fourth proportional to 642,080.79, 886,060.62 and 355,594.73 is: 490,714.70
Step by Step Solution
- Step 1: Write the proportion equation
642,080.79 : 886,060.62 = 355,594.73 : x - Step 2: Convert to fraction form
642,080.79/886,060.62 = 355,594.73/x - Step 3: Cross multiply
642,080.79x = 886,060.62 × 355,594.73 - Step 4: Simplify right side
642,080.79x = 315,078,482,502.23 - Step 5: Solve for x
x = 315,078,482,502.23/642,080.79 - Step 6: Final answer
x = 490,714.70
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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.