Finding the Fourth Proportional to 722,102.19, 996,532.17 and 399,812.28
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Solution
The fourth proportional to 722,102.19, 996,532.17 and 399,812.28 is: 551,758.19
Step by Step Solution
- Step 1: Write the proportion equation
722,102.19 : 996,532.17 = 399,812.28 : x - Step 2: Convert to fraction form
722,102.19/996,532.17 = 399,812.28/x - Step 3: Cross multiply
722,102.19x = 996,532.17 × 399,812.28 - Step 4: Simplify right side
722,102.19x = 398,425,798,981.05 - Step 5: Solve for x
x = 398,425,798,981.05/722,102.19 - Step 6: Final answer
x = 551,758.19
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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.