Finding the Fourth Proportional to 3,211,860.60, 4,432,389.49 and 1,761,566.41
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Solution
The fourth proportional to 3,211,860.60, 4,432,389.49 and 1,761,566.41 is: 2,430,973.64
Step by Step Solution
- Step 1: Write the proportion equation
3,211,860.60 : 4,432,389.49 = 1,761,566.41 : x - Step 2: Convert to fraction form
3,211,860.60/4,432,389.49 = 1,761,566.41/x - Step 3: Cross multiply
3,211,860.60x = 4,432,389.49 × 1,761,566.41 - Step 4: Simplify right side
3,211,860.60x = 7,807,948,465,387.28 - Step 5: Solve for x
x = 7,807,948,465,387.28/3,211,860.60 - Step 6: Final answer
x = 2,430,973.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.