Finding the Fourth Proportional to 519,121.80, 778,682.70 and 519,121.80
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Solution
The fourth proportional to 519,121.80, 778,682.70 and 519,121.80 is: 778,682.70
Step by Step Solution
- Step 1: Write the proportion equation
519,121.80 : 778,682.70 = 519,121.80 : x - Step 2: Convert to fraction form
519,121.80/778,682.70 = 519,121.80/x - Step 3: Cross multiply
519,121.80x = 778,682.70 × 519,121.80 - Step 4: Simplify right side
519,121.80x = 404,231,164,852.86 - Step 5: Solve for x
x = 404,231,164,852.86/519,121.80 - Step 6: Final answer
x = 778,682.70
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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.