Finding the Fourth Proportional to 438,212.54, 657,590.97 and 280,554.14
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Solution
The fourth proportional to 438,212.54, 657,590.97 and 280,554.14 is: 421,005.45
Step by Step Solution
- Step 1: Write the proportion equation
438,212.54 : 657,590.97 = 280,554.14 : x - Step 2: Convert to fraction form
438,212.54/657,590.97 = 280,554.14/x - Step 3: Cross multiply
438,212.54x = 657,590.97 × 280,554.14 - Step 4: Simplify right side
438,212.54x = 184,489,869,060.12 - Step 5: Solve for x
x = 184,489,869,060.12/438,212.54 - Step 6: Final answer
x = 421,005.45
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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.