Finding the Fourth Proportional to 879,533.75, 1,213,758.92 and 477,125.75
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Solution
The fourth proportional to 879,533.75, 1,213,758.92 and 477,125.75 is: 658,434.81
Step by Step Solution
- Step 1: Write the proportion equation
879,533.75 : 1,213,758.92 = 477,125.75 : x - Step 2: Convert to fraction form
879,533.75/1,213,758.92 = 477,125.75/x - Step 3: Cross multiply
879,533.75x = 1,213,758.92 × 477,125.75 - Step 4: Simplify right side
879,533.75x = 579,115,639,251.40 - Step 5: Solve for x
x = 579,115,639,251.40/879,533.75 - Step 6: Final answer
x = 658,434.81
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1.5x scale
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.