Finding the Fourth Proportional to 485,691.09, 670,204.85 and 270,811.05
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Solution
The fourth proportional to 485,691.09, 670,204.85 and 270,811.05 is: 373,692.01
Step by Step Solution
- Step 1: Write the proportion equation
485,691.09 : 670,204.85 = 270,811.05 : x - Step 2: Convert to fraction form
485,691.09/670,204.85 = 270,811.05/x - Step 3: Cross multiply
485,691.09x = 670,204.85 × 270,811.05 - Step 4: Simplify right side
485,691.09x = 181,498,877,789.54 - Step 5: Solve for x
x = 181,498,877,789.54/485,691.09 - Step 6: Final answer
x = 373,692.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.