Finding the Fourth Proportional to 2,877,435.20, 3,970,860.79 and 1,588,275.92
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Solution
The fourth proportional to 2,877,435.20, 3,970,860.79 and 1,588,275.92 is: 2,191,820.89
Step by Step Solution
- Step 1: Write the proportion equation
2,877,435.20 : 3,970,860.79 = 1,588,275.92 : x - Step 2: Convert to fraction form
2,877,435.20/3,970,860.79 = 1,588,275.92/x - Step 3: Cross multiply
2,877,435.20x = 3,970,860.79 × 1,588,275.92 - Step 4: Simplify right side
2,877,435.20x = 6,306,822,574,429.18 - Step 5: Solve for x
x = 6,306,822,574,429.18/2,877,435.20 - Step 6: Final answer
x = 2,191,820.89
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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.