Finding the Fourth Proportional to 656,818.26, 906,409.20 and 355,012.26
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Solution
The fourth proportional to 656,818.26, 906,409.20 and 355,012.26 is: 489,916.92
Step by Step Solution
- Step 1: Write the proportion equation
656,818.26 : 906,409.20 = 355,012.26 : x - Step 2: Convert to fraction form
656,818.26/906,409.20 = 355,012.26/x - Step 3: Cross multiply
656,818.26x = 906,409.20 × 355,012.26 - Step 4: Simplify right side
656,818.26x = 321,786,374,044.75 - Step 5: Solve for x
x = 321,786,374,044.75/656,818.26 - Step 6: Final answer
x = 489,916.92
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1.5x scale
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.