Finding the Fourth Proportional to 519,701.70, 779,115.15 and 270,383.70
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Solution
The fourth proportional to 519,701.70, 779,115.15 and 270,383.70 is: 405,347.99
Step by Step Solution
- Step 1: Write the proportion equation
519,701.70 : 779,115.15 = 270,383.70 : x - Step 2: Convert to fraction form
519,701.70/779,115.15 = 270,383.70/x - Step 3: Cross multiply
519,701.70x = 779,115.15 × 270,383.70 - Step 4: Simplify right side
519,701.70x = 210,660,036,983.06 - Step 5: Solve for x
x = 210,660,036,983.06/519,701.70 - Step 6: Final answer
x = 405,347.99
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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.