Finding the Fourth Proportional to 851,037.18, 1,276,588.17 and 318,502.14
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Solution
The fourth proportional to 851,037.18, 1,276,588.17 and 318,502.14 is: 477,765.34
Step by Step Solution
- Step 1: Write the proportion equation
851,037.18 : 1,276,588.17 = 318,502.14 : x - Step 2: Convert to fraction form
851,037.18/1,276,588.17 = 318,502.14/x - Step 3: Cross multiply
851,037.18x = 1,276,588.17 × 318,502.14 - Step 4: Simplify right side
851,037.18x = 406,596,064,043.68 - Step 5: Solve for x
x = 406,596,064,043.68/851,037.18 - Step 6: Final answer
x = 477,765.34
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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.