Finding the Fourth Proportional to 659,942.07, 910,720.08 and 358,136.07
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Solution
The fourth proportional to 659,942.07, 910,720.08 and 358,136.07 is: 494,227.79
Step by Step Solution
- Step 1: Write the proportion equation
659,942.07 : 910,720.08 = 358,136.07 : x - Step 2: Convert to fraction form
659,942.07/910,720.08 = 358,136.07/x - Step 3: Cross multiply
659,942.07x = 910,720.08 × 358,136.07 - Step 4: Simplify right side
659,942.07x = 326,161,710,321.29 - Step 5: Solve for x
x = 326,161,710,321.29/659,942.07 - Step 6: Final answer
x = 494,227.79
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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.