Finding the Fourth Proportional to 1,279,118.24, 1,917,665.14 and 480,310.80
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Solution
The fourth proportional to 1,279,118.24, 1,917,665.14 and 480,310.80 is: 720,086.11
Step by Step Solution
- Step 1: Write the proportion equation
1,279,118.24 : 1,917,665.14 = 480,310.80 : x - Step 2: Convert to fraction form
1,279,118.24/1,917,665.14 = 480,310.80/x - Step 3: Cross multiply
1,279,118.24x = 1,917,665.14 × 480,310.80 - Step 4: Simplify right side
1,279,118.24x = 921,075,277,525.51 - Step 5: Solve for x
x = 921,075,277,525.51/1,279,118.24 - Step 6: Final answer
x = 720,086.11
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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.