Finding the Fourth Proportional to 677,939.61, 935,554.08 and 372,021.09
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Solution
The fourth proportional to 677,939.61, 935,554.08 and 372,021.09 is: 513,387.69
Step by Step Solution
- Step 1: Write the proportion equation
677,939.61 : 935,554.08 = 372,021.09 : x - Step 2: Convert to fraction form
677,939.61/935,554.08 = 372,021.09/x - Step 3: Cross multiply
677,939.61x = 935,554.08 × 372,021.09 - Step 4: Simplify right side
677,939.61x = 348,045,848,595.55 - Step 5: Solve for x
x = 348,045,848,595.55/677,939.61 - Step 6: Final answer
x = 513,387.69
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1.5x scale
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.