Finding the Fourth Proportional to 665,115.40, 997,673.10 and 265,817.80
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Solution
The fourth proportional to 665,115.40, 997,673.10 and 265,817.80 is: 398,726.70
Step by Step Solution
- Step 1: Write the proportion equation
665,115.40 : 997,673.10 = 265,817.80 : x - Step 2: Convert to fraction form
665,115.40/997,673.10 = 265,817.80/x - Step 3: Cross multiply
665,115.40x = 997,673.10 × 265,817.80 - Step 4: Simplify right side
665,115.40x = 265,199,268,561.18 - Step 5: Solve for x
x = 265,199,268,561.18/665,115.40 - Step 6: Final answer
x = 398,726.70
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.