Finding the Fourth Proportional to 519,391.41, 780,457.07 and 279,682.55
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Solution
The fourth proportional to 519,391.41, 780,457.07 and 279,682.55 is: 420,261.52
Step by Step Solution
- Step 1: Write the proportion equation
519,391.41 : 780,457.07 = 279,682.55 : x - Step 2: Convert to fraction form
519,391.41/780,457.07 = 279,682.55/x - Step 3: Cross multiply
519,391.41x = 780,457.07 × 279,682.55 - Step 4: Simplify right side
519,391.41x = 218,280,223,503.13 - Step 5: Solve for x
x = 218,280,223,503.13/519,391.41 - Step 6: Final answer
x = 420,261.52
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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.