Finding the Fourth Proportional to 629,435.36, 868,609.84 and 342,957.80
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Solution
The fourth proportional to 629,435.36, 868,609.84 and 342,957.80 is: 473,275.79
Step by Step Solution
- Step 1: Write the proportion equation
629,435.36 : 868,609.84 = 342,957.80 : x - Step 2: Convert to fraction form
629,435.36/868,609.84 = 342,957.80/x - Step 3: Cross multiply
629,435.36x = 868,609.84 × 342,957.80 - Step 4: Simplify right side
629,435.36x = 297,896,519,784.75 - Step 5: Solve for x
x = 297,896,519,784.75/629,435.36 - Step 6: Final answer
x = 473,275.79
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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.