Finding the Fourth Proportional to 1,467,390.80, 2,201,742.30 and 521,440.40
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Solution
The fourth proportional to 1,467,390.80, 2,201,742.30 and 521,440.40 is: 782,393.75
Step by Step Solution
- Step 1: Write the proportion equation
1,467,390.80 : 2,201,742.30 = 521,440.40 : x - Step 2: Convert to fraction form
1,467,390.80/2,201,742.30 = 521,440.40/x - Step 3: Cross multiply
1,467,390.80x = 2,201,742.30 × 521,440.40 - Step 4: Simplify right side
1,467,390.80x = 1,148,077,385,608.92 - Step 5: Solve for x
x = 1,148,077,385,608.92/1,467,390.80 - Step 6: Final answer
x = 782,393.75
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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.