Finding the Fourth Proportional to 1,468,381.20, 2,202,053.40 and 521,782.80
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Solution
The fourth proportional to 1,468,381.20, 2,202,053.40 and 521,782.80 is: 782,489.99
Step by Step Solution
- Step 1: Write the proportion equation
1,468,381.20 : 2,202,053.40 = 521,782.80 : x - Step 2: Convert to fraction form
1,468,381.20/2,202,053.40 = 521,782.80/x - Step 3: Cross multiply
1,468,381.20x = 2,202,053.40 × 521,782.80 - Step 4: Simplify right side
1,468,381.20x = 1,148,993,588,801.52 - Step 5: Solve for x
x = 1,148,993,588,801.52/1,468,381.20 - Step 6: Final answer
x = 782,489.99
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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.