Finding the Fourth Proportional to 557,425.68, 769,265.67 and 315,702.94
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Solution
The fourth proportional to 557,425.68, 769,265.67 and 315,702.94 is: 435,680.38
Step by Step Solution
- Step 1: Write the proportion equation
557,425.68 : 769,265.67 = 315,702.94 : x - Step 2: Convert to fraction form
557,425.68/769,265.67 = 315,702.94/x - Step 3: Cross multiply
557,425.68x = 769,265.67 × 315,702.94 - Step 4: Simplify right side
557,425.68x = 242,859,433,660.07 - Step 5: Solve for x
x = 242,859,433,660.07/557,425.68 - Step 6: Final answer
x = 435,680.38
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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.