Finding the Fourth Proportional to 703,940.13, 972,239.09 and 477,191.97
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Solution
The fourth proportional to 703,940.13, 972,239.09 and 477,191.97 is: 659,068.38
Step by Step Solution
- Step 1: Write the proportion equation
703,940.13 : 972,239.09 = 477,191.97 : x - Step 2: Convert to fraction form
703,940.13/972,239.09 = 477,191.97/x - Step 3: Cross multiply
703,940.13x = 972,239.09 × 477,191.97 - Step 4: Simplify right side
703,940.13x = 463,944,684,282.15 - Step 5: Solve for x
x = 463,944,684,282.15/703,940.13 - Step 6: Final answer
x = 659,068.38
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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.