Finding the Fourth Proportional to 1,310,271.80, 1,965,407.09 and 363,642.21
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Solution
The fourth proportional to 1,310,271.80, 1,965,407.09 and 363,642.21 is: 545,463.15
Step by Step Solution
- Step 1: Write the proportion equation
1,310,271.80 : 1,965,407.09 = 363,642.21 : x - Step 2: Convert to fraction form
1,310,271.80/1,965,407.09 = 363,642.21/x - Step 3: Cross multiply
1,310,271.80x = 1,965,407.09 × 363,642.21 - Step 4: Simplify right side
1,310,271.80x = 714,704,975,939.06 - Step 5: Solve for x
x = 714,704,975,939.06/1,310,271.80 - Step 6: Final answer
x = 545,463.15
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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.