Finding the Fourth Proportional to 1,261,847.76, 1,741,283.98 and 688,777.21
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Solution
The fourth proportional to 1,261,847.76, 1,741,283.98 and 688,777.21 is: 950,476.56
Step by Step Solution
- Step 1: Write the proportion equation
1,261,847.76 : 1,741,283.98 = 688,777.21 : x - Step 2: Convert to fraction form
1,261,847.76/1,741,283.98 = 688,777.21/x - Step 3: Cross multiply
1,261,847.76x = 1,741,283.98 × 688,777.21 - Step 4: Simplify right side
1,261,847.76x = 1,199,356,721,562.10 - Step 5: Solve for x
x = 1,199,356,721,562.10/1,261,847.76 - Step 6: Final answer
x = 950,476.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.