Finding the Fourth Proportional to 879,060.75, 1,213,104.38 and 476,652.75
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Solution
The fourth proportional to 879,060.75, 1,213,104.38 and 476,652.75 is: 657,781.09
Step by Step Solution
- Step 1: Write the proportion equation
879,060.75 : 1,213,104.38 = 476,652.75 : x - Step 2: Convert to fraction form
879,060.75/1,213,104.38 = 476,652.75/x - Step 3: Cross multiply
879,060.75x = 1,213,104.38 × 476,652.75 - Step 4: Simplify right side
879,060.75x = 578,229,536,380.78 - Step 5: Solve for x
x = 578,229,536,380.78/879,060.75 - Step 6: Final answer
x = 657,781.09
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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.