Finding the Fourth Proportional to 409,313.97, 560,762.18 and 393,973.35
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Solution
The fourth proportional to 409,313.97, 560,762.18 and 393,973.35 is: 539,745.45
Step by Step Solution
- Step 1: Write the proportion equation
409,313.97 : 560,762.18 = 393,973.35 : x - Step 2: Convert to fraction form
409,313.97/560,762.18 = 393,973.35/x - Step 3: Cross multiply
409,313.97x = 560,762.18 × 393,973.35 - Step 4: Simplify right side
409,313.97x = 220,925,354,607.90 - Step 5: Solve for x
x = 220,925,354,607.90/409,313.97 - Step 6: Final answer
x = 539,745.45
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.