Finding the Fourth Proportional to 665,715.40, 998,573.10 and 266,417.80
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Solution
The fourth proportional to 665,715.40, 998,573.10 and 266,417.80 is: 399,626.70
Step by Step Solution
- Step 1: Write the proportion equation
665,715.40 : 998,573.10 = 266,417.80 : x - Step 2: Convert to fraction form
665,715.40/998,573.10 = 266,417.80/x - Step 3: Cross multiply
665,715.40x = 998,573.10 × 266,417.80 - Step 4: Simplify right side
665,715.40x = 266,037,648,441.18 - Step 5: Solve for x
x = 266,037,648,441.18/665,715.40 - Step 6: Final answer
x = 399,626.70
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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.