Finding the Fourth Proportional to 664,079.08, 916,344.99 and 377,605.32
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Solution
The fourth proportional to 664,079.08, 916,344.99 and 377,605.32 is: 521,047.49
Step by Step Solution
- Step 1: Write the proportion equation
664,079.08 : 916,344.99 = 377,605.32 : x - Step 2: Convert to fraction form
664,079.08/916,344.99 = 377,605.32/x - Step 3: Cross multiply
664,079.08x = 916,344.99 × 377,605.32 - Step 4: Simplify right side
664,079.08x = 346,016,741,789.27 - Step 5: Solve for x
x = 346,016,741,789.27/664,079.08 - Step 6: Final answer
x = 521,047.49
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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.