Finding the Fourth Proportional to 3,642,811.80, 5,465,772.90 and 1,748,578.20
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Solution
The fourth proportional to 3,642,811.80, 5,465,772.90 and 1,748,578.20 is: 2,623,613.81
Step by Step Solution
- Step 1: Write the proportion equation
3,642,811.80 : 5,465,772.90 = 1,748,578.20 : x - Step 2: Convert to fraction form
3,642,811.80/5,465,772.90 = 1,748,578.20/x - Step 3: Cross multiply
3,642,811.80x = 5,465,772.90 × 1,748,578.20 - Step 4: Simplify right side
3,642,811.80x = 9,557,331,339,090.78 - Step 5: Solve for x
x = 9,557,331,339,090.78/3,642,811.80 - Step 6: Final answer
x = 2,623,613.81
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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.