Finding the Fourth Proportional to 879,533.13, 1,213,758.05 and 477,125.13
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Solution
The fourth proportional to 879,533.13, 1,213,758.05 and 477,125.13 is: 658,433.94
Step by Step Solution
- Step 1: Write the proportion equation
879,533.13 : 1,213,758.05 = 477,125.13 : x - Step 2: Convert to fraction form
879,533.13/1,213,758.05 = 477,125.13/x - Step 3: Cross multiply
879,533.13x = 1,213,758.05 × 477,125.13 - Step 4: Simplify right side
879,533.13x = 579,114,467,394.80 - Step 5: Solve for x
x = 579,114,467,394.80/879,533.13 - Step 6: Final answer
x = 658,433.94
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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.