Finding the Fourth Proportional to 879,989.63, 1,214,385.68 and 477,581.63
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Solution
The fourth proportional to 879,989.63, 1,214,385.68 and 477,581.63 is: 659,062.64
Step by Step Solution
- Step 1: Write the proportion equation
879,989.63 : 1,214,385.68 = 477,581.63 : x - Step 2: Convert to fraction form
879,989.63/1,214,385.68 = 477,581.63/x - Step 3: Cross multiply
879,989.63x = 1,214,385.68 × 477,581.63 - Step 4: Simplify right side
879,989.63x = 579,968,287,625.08 - Step 5: Solve for x
x = 579,968,287,625.08/879,989.63 - Step 6: Final answer
x = 659,062.64
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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.