Finding the Fourth Proportional to 811,816.84, 1,120,532.43 and 472,350.70
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Solution
The fourth proportional to 811,816.84, 1,120,532.43 and 472,350.70 is: 651,974.99
Step by Step Solution
- Step 1: Write the proportion equation
811,816.84 : 1,120,532.43 = 472,350.70 : x - Step 2: Convert to fraction form
811,816.84/1,120,532.43 = 472,350.70/x - Step 3: Cross multiply
811,816.84x = 1,120,532.43 × 472,350.70 - Step 4: Simplify right side
811,816.84x = 529,284,277,683.20 - Step 5: Solve for x
x = 529,284,277,683.20/811,816.84 - Step 6: Final answer
x = 651,974.99
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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.