Finding the Fourth Proportional to 517,314.21, 775,745.10 and 260,989.07
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Solution
The fourth proportional to 517,314.21, 775,745.10 and 260,989.07 is: 391,369.49
Step by Step Solution
- Step 1: Write the proportion equation
517,314.21 : 775,745.10 = 260,989.07 : x - Step 2: Convert to fraction form
517,314.21/775,745.10 = 260,989.07/x - Step 3: Cross multiply
517,314.21x = 775,745.10 × 260,989.07 - Step 4: Simplify right side
517,314.21x = 202,460,995,550.68 - Step 5: Solve for x
x = 202,460,995,550.68/517,314.21 - Step 6: Final answer
x = 391,369.49
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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.