Finding the Fourth Proportional to 839,847.63, 1,158,989.69 and 477,272.19
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Solution
The fourth proportional to 839,847.63, 1,158,989.69 and 477,272.19 is: 658,635.60
Step by Step Solution
- Step 1: Write the proportion equation
839,847.63 : 1,158,989.69 = 477,272.19 : x - Step 2: Convert to fraction form
839,847.63/1,158,989.69 = 477,272.19/x - Step 3: Cross multiply
839,847.63x = 1,158,989.69 × 477,272.19 - Step 4: Simplify right side
839,847.63x = 553,153,553,073.11 - Step 5: Solve for x
x = 553,153,553,073.11/839,847.63 - Step 6: Final answer
x = 658,635.60
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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.