Finding the Fourth Proportional to 921,519.92, 1,271,703.39 and 513,647.62
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Solution
The fourth proportional to 921,519.92, 1,271,703.39 and 513,647.62 is: 708,837.00
Step by Step Solution
- Step 1: Write the proportion equation
921,519.92 : 1,271,703.39 = 513,647.62 : x - Step 2: Convert to fraction form
921,519.92/1,271,703.39 = 513,647.62/x - Step 3: Cross multiply
921,519.92x = 1,271,703.39 × 513,647.62 - Step 4: Simplify right side
921,519.92x = 653,207,420,979.93 - Step 5: Solve for x
x = 653,207,420,979.93/921,519.92 - Step 6: Final answer
x = 708,837.00
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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.