Finding the Fourth Proportional to 669,657.09, 924,134.27 and 394,075.88
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Solution
The fourth proportional to 669,657.09, 924,134.27 and 394,075.88 is: 543,829.11
Step by Step Solution
- Step 1: Write the proportion equation
669,657.09 : 924,134.27 = 394,075.88 : x - Step 2: Convert to fraction form
669,657.09/924,134.27 = 394,075.88/x - Step 3: Cross multiply
669,657.09x = 924,134.27 × 394,075.88 - Step 4: Simplify right side
669,657.09x = 364,179,022,052.93 - Step 5: Solve for x
x = 364,179,022,052.93/669,657.09 - Step 6: Final answer
x = 543,829.11
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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.