Finding the Fourth Proportional to 2,160,156.48, 2,981,040.96 and 1,193,266.74
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Solution
The fourth proportional to 2,160,156.48, 2,981,040.96 and 1,193,266.74 is: 1,646,721.92
Step by Step Solution
- Step 1: Write the proportion equation
2,160,156.48 : 2,981,040.96 = 1,193,266.74 : x - Step 2: Convert to fraction form
2,160,156.48/2,981,040.96 = 1,193,266.74/x - Step 3: Cross multiply
2,160,156.48x = 2,981,040.96 × 1,193,266.74 - Step 4: Simplify right side
2,160,156.48x = 3,557,177,028,145.67 - Step 5: Solve for x
x = 3,557,177,028,145.67/2,160,156.48 - Step 6: Final answer
x = 1,646,721.92
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1.5x scale
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.