Finding the Fourth Proportional to 1,761,862.20, 2,642,793.30 and 1,749,420.60
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Solution
The fourth proportional to 1,761,862.20, 2,642,793.30 and 1,749,420.60 is: 2,624,130.90
Step by Step Solution
- Step 1: Write the proportion equation
1,761,862.20 : 2,642,793.30 = 1,749,420.60 : x - Step 2: Convert to fraction form
1,761,862.20/2,642,793.30 = 1,749,420.60/x - Step 3: Cross multiply
1,761,862.20x = 2,642,793.30 × 1,749,420.60 - Step 4: Simplify right side
1,761,862.20x = 4,623,357,040,561.98 - Step 5: Solve for x
x = 4,623,357,040,561.98/1,761,862.20 - Step 6: Final answer
x = 2,624,130.90
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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.