Finding the Fourth Proportional to 322,479.10, 483,718.65 and 85,845.70
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Solution
The fourth proportional to 322,479.10, 483,718.65 and 85,845.70 is: 128,768.55
Step by Step Solution
- Step 1: Write the proportion equation
322,479.10 : 483,718.65 = 85,845.70 : x - Step 2: Convert to fraction form
322,479.10/483,718.65 = 85,845.70/x - Step 3: Cross multiply
322,479.10x = 483,718.65 × 85,845.70 - Step 4: Simplify right side
322,479.10x = 41,525,166,112.31 - Step 5: Solve for x
x = 41,525,166,112.31/322,479.10 - Step 6: Final answer
x = 128,768.55
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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.