Finding the Fourth Proportional to 680,063.21, 938,487.20 and 374,133.02
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Solution
The fourth proportional to 680,063.21, 938,487.20 and 374,133.02 is: 516,303.55
Step by Step Solution
- Step 1: Write the proportion equation
680,063.21 : 938,487.20 = 374,133.02 : x - Step 2: Convert to fraction form
680,063.21/938,487.20 = 374,133.02/x - Step 3: Cross multiply
680,063.21x = 938,487.20 × 374,133.02 - Step 4: Simplify right side
680,063.21x = 351,119,045,674.91 - Step 5: Solve for x
x = 351,119,045,674.91/680,063.21 - Step 6: Final answer
x = 516,303.55
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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.