Finding the Fourth Proportional to 519,986.20, 779,979.30 and 295,259.80
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Solution
The fourth proportional to 519,986.20, 779,979.30 and 295,259.80 is: 442,889.70
Step by Step Solution
- Step 1: Write the proportion equation
519,986.20 : 779,979.30 = 295,259.80 : x - Step 2: Convert to fraction form
519,986.20/779,979.30 = 295,259.80/x - Step 3: Cross multiply
519,986.20x = 779,979.30 × 295,259.80 - Step 4: Simplify right side
519,986.20x = 230,296,532,122.14 - Step 5: Solve for x
x = 230,296,532,122.14/519,986.20 - Step 6: Final answer
x = 442,889.70
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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.