Finding the Fourth Proportional to 1,946,438.64, 2,686,311.95 and 1,619,173.53
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Solution
The fourth proportional to 1,946,438.64, 2,686,311.95 and 1,619,173.53 is: 2,234,647.99
Step by Step Solution
- Step 1: Write the proportion equation
1,946,438.64 : 2,686,311.95 = 1,619,173.53 : x - Step 2: Convert to fraction form
1,946,438.64/2,686,311.95 = 1,619,173.53/x - Step 3: Cross multiply
1,946,438.64x = 2,686,311.95 × 1,619,173.53 - Step 4: Simplify right side
1,946,438.64x = 4,349,605,194,666.82 - Step 5: Solve for x
x = 4,349,605,194,666.82/1,946,438.64 - Step 6: Final answer
x = 2,234,647.99
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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.