Finding the Fourth Proportional to 3,457,980.67, 5,187,220.12 and 1,328,064.79
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Solution
The fourth proportional to 3,457,980.67, 5,187,220.12 and 1,328,064.79 is: 1,992,192.86
Step by Step Solution
- Step 1: Write the proportion equation
3,457,980.67 : 5,187,220.12 = 1,328,064.79 : x - Step 2: Convert to fraction form
3,457,980.67/5,187,220.12 = 1,328,064.79/x - Step 3: Cross multiply
3,457,980.67x = 5,187,220.12 × 1,328,064.79 - Step 4: Simplify right side
3,457,980.67x = 6,888,964,384,449.42 - Step 5: Solve for x
x = 6,888,964,384,449.42/3,457,980.67 - Step 6: Final answer
x = 1,992,192.86
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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.