Finding the Fourth Proportional to 678,170.10, 935,868.68 and 372,237.42
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Solution
The fourth proportional to 678,170.10, 935,868.68 and 372,237.42 is: 513,684.31
Step by Step Solution
- Step 1: Write the proportion equation
678,170.10 : 935,868.68 = 372,237.42 : x - Step 2: Convert to fraction form
678,170.10/935,868.68 = 372,237.42/x - Step 3: Cross multiply
678,170.10x = 935,868.68 × 372,237.42 - Step 4: Simplify right side
678,170.10x = 348,365,342,902.01 - Step 5: Solve for x
x = 348,365,342,902.01/678,170.10 - Step 6: Final answer
x = 513,684.31
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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.