Finding the Fourth Proportional to 722,104.19, 996,534.93 and 399,814.28
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Solution
The fourth proportional to 722,104.19, 996,534.93 and 399,814.28 is: 551,760.95
Step by Step Solution
- Step 1: Write the proportion equation
722,104.19 : 996,534.93 = 399,814.28 : x - Step 2: Convert to fraction form
722,104.19/996,534.93 = 399,814.28/x - Step 3: Cross multiply
722,104.19x = 996,534.93 × 399,814.28 - Step 4: Simplify right side
722,104.19x = 398,428,895,532.80 - Step 5: Solve for x
x = 398,428,895,532.80/722,104.19 - Step 6: Final answer
x = 551,760.95
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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.