Finding the Fourth Proportional to 1,261,592.21, 1,740,936.44 and 717,676.81
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Solution
The fourth proportional to 1,261,592.21, 1,740,936.44 and 717,676.81 is: 990,359.40
Step by Step Solution
- Step 1: Write the proportion equation
1,261,592.21 : 1,740,936.44 = 717,676.81 : x - Step 2: Convert to fraction form
1,261,592.21/1,740,936.44 = 717,676.81/x - Step 3: Cross multiply
1,261,592.21x = 1,740,936.44 × 717,676.81 - Step 4: Simplify right side
1,261,592.21x = 1,249,429,708,113.81 - Step 5: Solve for x
x = 1,249,429,708,113.81/1,261,592.21 - Step 6: Final answer
x = 990,359.40
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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.