Finding the Fourth Proportional to 804,875.40, 1,206,875.70 and 272,122.20
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Solution
The fourth proportional to 804,875.40, 1,206,875.70 and 272,122.20 is: 408,035.42
Step by Step Solution
- Step 1: Write the proportion equation
804,875.40 : 1,206,875.70 = 272,122.20 : x - Step 2: Convert to fraction form
804,875.40/1,206,875.70 = 272,122.20/x - Step 3: Cross multiply
804,875.40x = 1,206,875.70 × 272,122.20 - Step 4: Simplify right side
804,875.40x = 328,417,670,610.54 - Step 5: Solve for x
x = 328,417,670,610.54/804,875.40 - Step 6: Final answer
x = 408,035.42
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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.