Finding the Fourth Proportional to 3,128,860.17, 4,694,638.82 and 1,689,257.70
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Solution
The fourth proportional to 3,128,860.17, 4,694,638.82 and 1,689,257.70 is: 2,534,614.63
Step by Step Solution
- Step 1: Write the proportion equation
3,128,860.17 : 4,694,638.82 = 1,689,257.70 : x - Step 2: Convert to fraction form
3,128,860.17/4,694,638.82 = 1,689,257.70/x - Step 3: Cross multiply
3,128,860.17x = 4,694,638.82 × 1,689,257.70 - Step 4: Simplify right side
3,128,860.17x = 7,930,454,766,957.63 - Step 5: Solve for x
x = 7,930,454,766,957.63/3,128,860.17 - Step 6: Final answer
x = 2,534,614.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.