Finding the Fourth Proportional to 3,457,990.68, 5,187,235.14 and 1,328,074.80
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Solution
The fourth proportional to 3,457,990.68, 5,187,235.14 and 1,328,074.80 is: 1,992,207.88
Step by Step Solution
- Step 1: Write the proportion equation
3,457,990.68 : 5,187,235.14 = 1,328,074.80 : x - Step 2: Convert to fraction form
3,457,990.68/5,187,235.14 = 1,328,074.80/x - Step 3: Cross multiply
3,457,990.68x = 5,187,235.14 × 1,328,074.80 - Step 4: Simplify right side
3,457,990.68x = 6,889,036,271,108.47 - Step 5: Solve for x
x = 6,889,036,271,108.47/3,457,990.68 - Step 6: Final answer
x = 1,992,207.88
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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.