Finding the Fourth Proportional to 521,646.24, 719,935.38 and 306,775.92
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Solution
The fourth proportional to 521,646.24, 719,935.38 and 306,775.92 is: 423,388.15
Step by Step Solution
- Step 1: Write the proportion equation
521,646.24 : 719,935.38 = 306,775.92 : x - Step 2: Convert to fraction form
521,646.24/719,935.38 = 306,775.92/x - Step 3: Cross multiply
521,646.24x = 719,935.38 × 306,775.92 - Step 4: Simplify right side
521,646.24x = 220,858,838,540.05 - Step 5: Solve for x
x = 220,858,838,540.05/521,646.24 - Step 6: Final answer
x = 423,388.15
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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.