Finding the Fourth Proportional to 3,975,739.68, 5,964,562.80 and 1,280,318.88
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Solution
The fourth proportional to 3,975,739.68, 5,964,562.80 and 1,280,318.88 is: 1,920,785.31
Step by Step Solution
- Step 1: Write the proportion equation
3,975,739.68 : 5,964,562.80 = 1,280,318.88 : x - Step 2: Convert to fraction form
3,975,739.68/5,964,562.80 = 1,280,318.88/x - Step 3: Cross multiply
3,975,739.68x = 5,964,562.80 × 1,280,318.88 - Step 4: Simplify right side
3,975,739.68x = 7,636,542,363,785.66 - Step 5: Solve for x
x = 7,636,542,363,785.66/3,975,739.68 - Step 6: Final answer
x = 1,920,785.31
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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.