Finding the Fourth Proportional to 2,639,701.24, 3,642,787.68 and 1,432,477.24
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Solution
The fourth proportional to 2,639,701.24, 3,642,787.68 and 1,432,477.24 is: 1,976,818.57
Step by Step Solution
- Step 1: Write the proportion equation
2,639,701.24 : 3,642,787.68 = 1,432,477.24 : x - Step 2: Convert to fraction form
2,639,701.24/3,642,787.68 = 1,432,477.24/x - Step 3: Cross multiply
2,639,701.24x = 3,642,787.68 × 1,432,477.24 - Step 4: Simplify right side
2,639,701.24x = 5,218,210,441,752.40 - Step 5: Solve for x
x = 5,218,210,441,752.40/2,639,701.24 - Step 6: Final answer
x = 1,976,818.57
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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.