Finding the Fourth Proportional to 2,872,920.30, 3,964,641.99 and 1,583,732.40
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Solution
The fourth proportional to 2,872,920.30, 3,964,641.99 and 1,583,732.40 is: 2,185,557.31
Step by Step Solution
- Step 1: Write the proportion equation
2,872,920.30 : 3,964,641.99 = 1,583,732.40 : x - Step 2: Convert to fraction form
2,872,920.30/3,964,641.99 = 1,583,732.40/x - Step 3: Cross multiply
2,872,920.30x = 3,964,641.99 × 1,583,732.40 - Step 4: Simplify right side
2,872,920.30x = 6,278,931,973,963.48 - Step 5: Solve for x
x = 6,278,931,973,963.48/2,872,920.30 - Step 6: Final answer
x = 2,185,557.31
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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.