Finding the Fourth Proportional to 612,985.91, 919,469.62 and 275,788.44
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Solution
The fourth proportional to 612,985.91, 919,469.62 and 275,788.44 is: 413,678.50
Step by Step Solution
- Step 1: Write the proportion equation
612,985.91 : 919,469.62 = 275,788.44 : x - Step 2: Convert to fraction form
612,985.91/919,469.62 = 275,788.44/x - Step 3: Cross multiply
612,985.91x = 919,469.62 × 275,788.44 - Step 4: Simplify right side
612,985.91x = 253,579,092,127.19 - Step 5: Solve for x
x = 253,579,092,127.19/612,985.91 - Step 6: Final answer
x = 413,678.50
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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.