Finding the Fourth Proportional to 720,892.08, 1,081,502.14 and 383,755.09
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Solution
The fourth proportional to 720,892.08, 1,081,502.14 and 383,755.09 is: 575,719.95
Step by Step Solution
- Step 1: Write the proportion equation
720,892.08 : 1,081,502.14 = 383,755.09 : x - Step 2: Convert to fraction form
720,892.08/1,081,502.14 = 383,755.09/x - Step 3: Cross multiply
720,892.08x = 1,081,502.14 × 383,755.09 - Step 4: Simplify right side
720,892.08x = 415,031,953,736.51 - Step 5: Solve for x
x = 415,031,953,736.51/720,892.08 - Step 6: Final answer
x = 575,719.95
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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.