Finding the Fourth Proportional to 2,107,525.70, 2,908,455.98 and 1,291,571.80
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Solution
The fourth proportional to 2,107,525.70, 2,908,455.98 and 1,291,571.80 is: 1,782,412.30
Step by Step Solution
- Step 1: Write the proportion equation
2,107,525.70 : 2,908,455.98 = 1,291,571.80 : x - Step 2: Convert to fraction form
2,107,525.70/2,908,455.98 = 1,291,571.80/x - Step 3: Cross multiply
2,107,525.70x = 2,908,455.98 × 1,291,571.80 - Step 4: Simplify right side
2,107,525.70x = 3,756,479,711,580.37 - Step 5: Solve for x
x = 3,756,479,711,580.37/2,107,525.70 - Step 6: Final answer
x = 1,782,412.30
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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.