Finding the Fourth Proportional to 879,646.44, 1,213,914.42 and 477,238.44
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Solution
The fourth proportional to 879,646.44, 1,213,914.42 and 477,238.44 is: 658,590.31
Step by Step Solution
- Step 1: Write the proportion equation
879,646.44 : 1,213,914.42 = 477,238.44 : x - Step 2: Convert to fraction form
879,646.44/1,213,914.42 = 477,238.44/x - Step 3: Cross multiply
879,646.44x = 1,213,914.42 × 477,238.44 - Step 4: Simplify right side
879,646.44x = 579,326,624,094.31 - Step 5: Solve for x
x = 579,326,624,094.31/879,646.44 - Step 6: Final answer
x = 658,590.31
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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.