Finding the Fourth Proportional to 545,115.80, 817,673.70 and 308,919.80
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Solution
The fourth proportional to 545,115.80, 817,673.70 and 308,919.80 is: 463,379.70
Step by Step Solution
- Step 1: Write the proportion equation
545,115.80 : 817,673.70 = 308,919.80 : x - Step 2: Convert to fraction form
545,115.80/817,673.70 = 308,919.80/x - Step 3: Cross multiply
545,115.80x = 817,673.70 × 308,919.80 - Step 4: Simplify right side
545,115.80x = 252,595,595,869.26 - Step 5: Solve for x
x = 252,595,595,869.26/545,115.80 - Step 6: Final answer
x = 463,379.70
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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.