Finding the Fourth Proportional to 2,021,131.80, 3,031,697.70 and 1,303,686.45
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Solution
The fourth proportional to 2,021,131.80, 3,031,697.70 and 1,303,686.45 is: 1,955,529.68
Step by Step Solution
- Step 1: Write the proportion equation
2,021,131.80 : 3,031,697.70 = 1,303,686.45 : x - Step 2: Convert to fraction form
2,021,131.80/3,031,697.70 = 1,303,686.45/x - Step 3: Cross multiply
2,021,131.80x = 3,031,697.70 × 1,303,686.45 - Step 4: Simplify right side
2,021,131.80x = 3,952,383,211,986.17 - Step 5: Solve for x
x = 3,952,383,211,986.17/2,021,131.80 - Step 6: Final answer
x = 1,955,529.68
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1.5x scale
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.