Finding the Fourth Proportional to 1,468,128.20, 2,201,673.90 and 521,529.80
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Solution
The fourth proportional to 1,468,128.20, 2,201,673.90 and 521,529.80 is: 782,110.55
Step by Step Solution
- Step 1: Write the proportion equation
1,468,128.20 : 2,201,673.90 = 521,529.80 : x - Step 2: Convert to fraction form
1,468,128.20/2,201,673.90 = 521,529.80/x - Step 3: Cross multiply
1,468,128.20x = 2,201,673.90 × 521,529.80 - Step 4: Simplify right side
1,468,128.20x = 1,148,238,548,732.22 - Step 5: Solve for x
x = 1,148,238,548,732.22/1,468,128.20 - Step 6: Final answer
x = 782,110.55
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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.