Finding the Fourth Proportional to 1,205,291.58, 1,662,890.40 and 688,674.84
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Solution
The fourth proportional to 1,205,291.58, 1,662,890.40 and 688,674.84 is: 950,135.88
Step by Step Solution
- Step 1: Write the proportion equation
1,205,291.58 : 1,662,890.40 = 688,674.84 : x - Step 2: Convert to fraction form
1,205,291.58/1,662,890.40 = 688,674.84/x - Step 3: Cross multiply
1,205,291.58x = 1,662,890.40 × 688,674.84 - Step 4: Simplify right side
1,205,291.58x = 1,145,190,780,157.54 - Step 5: Solve for x
x = 1,145,190,780,157.54/1,205,291.58 - Step 6: Final answer
x = 950,135.88
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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.