Finding the Fourth Proportional to 487,884.80, 730,660.80 and 394,572.80
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Solution
The fourth proportional to 487,884.80, 730,660.80 and 394,572.80 is: 590,915.88
Step by Step Solution
- Step 1: Write the proportion equation
487,884.80 : 730,660.80 = 394,572.80 : x - Step 2: Convert to fraction form
487,884.80/730,660.80 = 394,572.80/x - Step 3: Cross multiply
487,884.80x = 730,660.80 × 394,572.80 - Step 4: Simplify right side
487,884.80x = 288,298,877,706.24 - Step 5: Solve for x
x = 288,298,877,706.24/487,884.80 - Step 6: Final answer
x = 590,915.88
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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.