Finding the Fourth Proportional to 661,549.05, 991,437.84 and 324,073.08
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Solution
The fourth proportional to 661,549.05, 991,437.84 and 324,073.08 is: 485,675.72
Step by Step Solution
- Step 1: Write the proportion equation
661,549.05 : 991,437.84 = 324,073.08 : x - Step 2: Convert to fraction form
661,549.05/991,437.84 = 324,073.08/x - Step 3: Cross multiply
661,549.05x = 991,437.84 × 324,073.08 - Step 4: Simplify right side
661,549.05x = 321,298,314,437.35 - Step 5: Solve for x
x = 321,298,314,437.35/661,549.05 - Step 6: Final answer
x = 485,675.72
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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.