Finding the Fourth Proportional to 1,819,729.80, 2,730,177.90 and 1,221,366.60
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Solution
The fourth proportional to 1,819,729.80, 2,730,177.90 and 1,221,366.60 is: 1,832,441.33
Step by Step Solution
- Step 1: Write the proportion equation
1,819,729.80 : 2,730,177.90 = 1,221,366.60 : x - Step 2: Convert to fraction form
1,819,729.80/2,730,177.90 = 1,221,366.60/x - Step 3: Cross multiply
1,819,729.80x = 2,730,177.90 × 1,221,366.60 - Step 4: Simplify right side
1,819,729.80x = 3,334,548,099,118.14 - Step 5: Solve for x
x = 3,334,548,099,118.14/1,819,729.80 - Step 6: Final answer
x = 1,832,441.33
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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.