Finding the Fourth Proportional to 628,236.80, 866,962.81 and 341,758.02
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Solution
The fourth proportional to 628,236.80, 866,962.81 and 341,758.02 is: 471,623.91
Step by Step Solution
- Step 1: Write the proportion equation
628,236.80 : 866,962.81 = 341,758.02 : x - Step 2: Convert to fraction form
628,236.80/866,962.81 = 341,758.02/x - Step 3: Cross multiply
628,236.80x = 866,962.81 × 341,758.02 - Step 4: Simplify right side
628,236.80x = 296,291,493,359.24 - Step 5: Solve for x
x = 296,291,493,359.24/628,236.80 - Step 6: Final answer
x = 471,623.91
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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.