Finding the Fourth Proportional to 353,515.92, 487,855.08 and 326,727.60
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Solution
The fourth proportional to 353,515.92, 487,855.08 and 326,727.60 is: 450,886.96
Step by Step Solution
- Step 1: Write the proportion equation
353,515.92 : 487,855.08 = 326,727.60 : x - Step 2: Convert to fraction form
353,515.92/487,855.08 = 326,727.60/x - Step 3: Cross multiply
353,515.92x = 487,855.08 × 326,727.60 - Step 4: Simplify right side
353,515.92x = 159,395,719,436.21 - Step 5: Solve for x
x = 159,395,719,436.21/353,515.92 - Step 6: Final answer
x = 450,886.96
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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.