Finding the Fourth Proportional to 1,292,658.93, 1,939,219.38 and 439,686.99
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Solution
The fourth proportional to 1,292,658.93, 1,939,219.38 and 439,686.99 is: 659,609.05
Step by Step Solution
- Step 1: Write the proportion equation
1,292,658.93 : 1,939,219.38 = 439,686.99 : x - Step 2: Convert to fraction form
1,292,658.93/1,939,219.38 = 439,686.99/x - Step 3: Cross multiply
1,292,658.93x = 1,939,219.38 × 439,686.99 - Step 4: Simplify right side
1,292,658.93x = 852,649,532,141.87 - Step 5: Solve for x
x = 852,649,532,141.87/1,292,658.93 - Step 6: Final answer
x = 659,609.05
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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.