Finding the Fourth Proportional to 2,991,197.36, 4,479,643.20 and 1,725,186.80
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Solution
The fourth proportional to 2,991,197.36, 4,479,643.20 and 1,725,186.80 is: 2,583,654.77
Step by Step Solution
- Step 1: Write the proportion equation
2,991,197.36 : 4,479,643.20 = 1,725,186.80 : x - Step 2: Convert to fraction form
2,991,197.36/4,479,643.20 = 1,725,186.80/x - Step 3: Cross multiply
2,991,197.36x = 4,479,643.20 × 1,725,186.80 - Step 4: Simplify right side
2,991,197.36x = 7,728,221,317,349.76 - Step 5: Solve for x
x = 7,728,221,317,349.76/2,991,197.36 - Step 6: Final answer
x = 2,583,654.77
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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.