Finding the Fourth Proportional to 692,198.40, 955,438.08 and 405,780.48
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Solution
The fourth proportional to 692,198.40, 955,438.08 and 405,780.48 is: 560,096.82
Step by Step Solution
- Step 1: Write the proportion equation
692,198.40 : 955,438.08 = 405,780.48 : x - Step 2: Convert to fraction form
692,198.40/955,438.08 = 405,780.48/x - Step 3: Cross multiply
692,198.40x = 955,438.08 × 405,780.48 - Step 4: Simplify right side
692,198.40x = 387,698,122,712.68 - Step 5: Solve for x
x = 387,698,122,712.68/692,198.40 - Step 6: Final answer
x = 560,096.82
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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.