Finding the Fourth Proportional to 579,137.80, 868,706.70 and 491,657.80
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Solution
The fourth proportional to 579,137.80, 868,706.70 and 491,657.80 is: 737,486.70
Step by Step Solution
- Step 1: Write the proportion equation
579,137.80 : 868,706.70 = 491,657.80 : x - Step 2: Convert to fraction form
579,137.80/868,706.70 = 491,657.80/x - Step 3: Cross multiply
579,137.80x = 868,706.70 × 491,657.80 - Step 4: Simplify right side
579,137.80x = 427,106,424,967.26 - Step 5: Solve for x
x = 427,106,424,967.26/579,137.80 - Step 6: Final answer
x = 737,486.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.