Finding the Fourth Proportional to 519,239.20, 778,858.80 and 283,043.20
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Solution
The fourth proportional to 519,239.20, 778,858.80 and 283,043.20 is: 424,564.80
Step by Step Solution
- Step 1: Write the proportion equation
519,239.20 : 778,858.80 = 283,043.20 : x - Step 2: Convert to fraction form
519,239.20/778,858.80 = 283,043.20/x - Step 3: Cross multiply
519,239.20x = 778,858.80 × 283,043.20 - Step 4: Simplify right side
519,239.20x = 220,450,687,100.16 - Step 5: Solve for x
x = 220,450,687,100.16/519,239.20 - Step 6: Final answer
x = 424,564.80
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Similar ratio
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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.