Finding the Fourth Proportional to 3,260,411.80, 4,890,617.70 and 1,129,787.80
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Solution
The fourth proportional to 3,260,411.80, 4,890,617.70 and 1,129,787.80 is: 1,694,681.70
Step by Step Solution
- Step 1: Write the proportion equation
3,260,411.80 : 4,890,617.70 = 1,129,787.80 : x - Step 2: Convert to fraction form
3,260,411.80/4,890,617.70 = 1,129,787.80/x - Step 3: Cross multiply
3,260,411.80x = 4,890,617.70 × 1,129,787.80 - Step 4: Simplify right side
3,260,411.80x = 5,525,360,211,924.06 - Step 5: Solve for x
x = 5,525,360,211,924.06/3,260,411.80 - Step 6: Final answer
x = 1,694,681.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.