Finding the Fourth Proportional to 519,317.70, 778,976.55 and 283,121.70
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Solution
The fourth proportional to 519,317.70, 778,976.55 and 283,121.70 is: 424,682.55
Step by Step Solution
- Step 1: Write the proportion equation
519,317.70 : 778,976.55 = 283,121.70 : x - Step 2: Convert to fraction form
519,317.70/778,976.55 = 283,121.70/x - Step 3: Cross multiply
519,317.70x = 778,976.55 × 283,121.70 - Step 4: Simplify right side
519,317.70x = 220,545,165,096.14 - Step 5: Solve for x
x = 220,545,165,096.14/519,317.70 - Step 6: Final answer
x = 424,682.55
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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.