Finding the Fourth Proportional to 545,745.98, 817,107.50 and 278,931.98
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Solution
The fourth proportional to 545,745.98, 817,107.50 and 278,931.98 is: 417,625.45
Step by Step Solution
- Step 1: Write the proportion equation
545,745.98 : 817,107.50 = 278,931.98 : x - Step 2: Convert to fraction form
545,745.98/817,107.50 = 278,931.98/x - Step 3: Cross multiply
545,745.98x = 817,107.50 × 278,931.98 - Step 4: Simplify right side
545,745.98x = 227,917,412,847.85 - Step 5: Solve for x
x = 227,917,412,847.85/545,745.98 - Step 6: Final answer
x = 417,625.45
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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.