Finding the Fourth Proportional to 879,623.97, 1,213,872.87 and 497,650.75
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Solution
The fourth proportional to 879,623.97, 1,213,872.87 and 497,650.75 is: 686,753.39
Step by Step Solution
- Step 1: Write the proportion equation
879,623.97 : 1,213,872.87 = 497,650.75 : x - Step 2: Convert to fraction form
879,623.97/1,213,872.87 = 497,650.75/x - Step 3: Cross multiply
879,623.97x = 1,213,872.87 × 497,650.75 - Step 4: Simplify right side
879,623.97x = 604,084,744,160.15 - Step 5: Solve for x
x = 604,084,744,160.15/879,623.97 - Step 6: Final answer
x = 686,753.39
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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.