Finding the Fourth Proportional to 1,213,877.80, 1,820,816.70 and 814,709.80
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Solution
The fourth proportional to 1,213,877.80, 1,820,816.70 and 814,709.80 is: 1,222,064.70
Step by Step Solution
- Step 1: Write the proportion equation
1,213,877.80 : 1,820,816.70 = 814,709.80 : x - Step 2: Convert to fraction form
1,213,877.80/1,820,816.70 = 814,709.80/x - Step 3: Cross multiply
1,213,877.80x = 1,820,816.70 × 814,709.80 - Step 4: Simplify right side
1,213,877.80x = 1,483,437,209,493.66 - Step 5: Solve for x
x = 1,483,437,209,493.66/1,213,877.80 - Step 6: Final answer
x = 1,222,064.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.