Finding the Fourth Proportional to 1,310,447.34, 1,965,669.21 and 411,967.62
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Solution
The fourth proportional to 1,310,447.34, 1,965,669.21 and 411,967.62 is: 617,950.86
Step by Step Solution
- Step 1: Write the proportion equation
1,310,447.34 : 1,965,669.21 = 411,967.62 : x - Step 2: Convert to fraction form
1,310,447.34/1,965,669.21 = 411,967.62/x - Step 3: Cross multiply
1,310,447.34x = 1,965,669.21 × 411,967.62 - Step 4: Simplify right side
1,310,447.34x = 809,792,066,150.98 - Step 5: Solve for x
x = 809,792,066,150.98/1,310,447.34 - Step 6: Final answer
x = 617,950.86
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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.