Finding the Fourth Proportional to 879,927.48, 1,214,299.94 and 477,519.48
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Solution
The fourth proportional to 879,927.48, 1,214,299.94 and 477,519.48 is: 658,976.89
Step by Step Solution
- Step 1: Write the proportion equation
879,927.48 : 1,214,299.94 = 477,519.48 : x - Step 2: Convert to fraction form
879,927.48/1,214,299.94 = 477,519.48/x - Step 3: Cross multiply
879,927.48x = 1,214,299.94 × 477,519.48 - Step 4: Simplify right side
879,927.48x = 579,851,873,525.23 - Step 5: Solve for x
x = 579,851,873,525.23/879,927.48 - Step 6: Final answer
x = 658,976.89
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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.