Finding the Fourth Proportional to 3,990,283.42, 5,986,265.75 and 1,294,398.13
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Solution
The fourth proportional to 3,990,283.42, 5,986,265.75 and 1,294,398.13 is: 1,941,869.88
Step by Step Solution
- Step 1: Write the proportion equation
3,990,283.42 : 5,986,265.75 = 1,294,398.13 : x - Step 2: Convert to fraction form
3,990,283.42/5,986,265.75 = 1,294,398.13/x - Step 3: Cross multiply
3,990,283.42x = 5,986,265.75 × 1,294,398.13 - Step 4: Simplify right side
3,990,283.42x = 7,748,611,192,483.05 - Step 5: Solve for x
x = 7,748,611,192,483.05/3,990,283.42 - Step 6: Final answer
x = 1,941,869.88
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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.