Finding the Fourth Proportional to 521,846.08, 720,135.41 and 306,999.98
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Solution
The fourth proportional to 521,846.08, 720,135.41 and 306,999.98 is: 423,652.81
Step by Step Solution
- Step 1: Write the proportion equation
521,846.08 : 720,135.41 = 306,999.98 : x - Step 2: Convert to fraction form
521,846.08/720,135.41 = 306,999.98/x - Step 3: Cross multiply
521,846.08x = 720,135.41 × 306,999.98 - Step 4: Simplify right side
521,846.08x = 221,081,556,467.29 - Step 5: Solve for x
x = 221,081,556,467.29/521,846.08 - Step 6: Final answer
x = 423,652.81
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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.