Finding the Fourth Proportional to 2,160,311.76, 2,981,315.51 and 1,242,539.44
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Solution
The fourth proportional to 2,160,311.76, 2,981,315.51 and 1,242,539.44 is: 1,714,753.47
Step by Step Solution
- Step 1: Write the proportion equation
2,160,311.76 : 2,981,315.51 = 1,242,539.44 : x - Step 2: Convert to fraction form
2,160,311.76/2,981,315.51 = 1,242,539.44/x - Step 3: Cross multiply
2,160,311.76x = 2,981,315.51 × 1,242,539.44 - Step 4: Simplify right side
2,160,311.76x = 3,704,402,098,046.02 - Step 5: Solve for x
x = 3,704,402,098,046.02/2,160,311.76 - Step 6: Final answer
x = 1,714,753.47
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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.