Finding the Fourth Proportional to 646,659.93, 892,406.80 and 360,184.80
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Solution
The fourth proportional to 646,659.93, 892,406.80 and 360,184.80 is: 497,063.99
Step by Step Solution
- Step 1: Write the proportion equation
646,659.93 : 892,406.80 = 360,184.80 : x - Step 2: Convert to fraction form
646,659.93/892,406.80 = 360,184.80/x - Step 3: Cross multiply
646,659.93x = 892,406.80 × 360,184.80 - Step 4: Simplify right side
646,659.93x = 321,431,364,776.64 - Step 5: Solve for x
x = 321,431,364,776.64/646,659.93 - Step 6: Final answer
x = 497,063.99
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1.5x scale
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.