Finding the Fourth Proportional to 1,768,143.60, 2,649,985.20 and 756,069.12
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Solution
The fourth proportional to 1,768,143.60, 2,649,985.20 and 756,069.12 is: 1,133,150.03
Step by Step Solution
- Step 1: Write the proportion equation
1,768,143.60 : 2,649,985.20 = 756,069.12 : x - Step 2: Convert to fraction form
1,768,143.60/2,649,985.20 = 756,069.12/x - Step 3: Cross multiply
1,768,143.60x = 2,649,985.20 × 756,069.12 - Step 4: Simplify right side
1,768,143.60x = 2,003,571,978,177.02 - Step 5: Solve for x
x = 2,003,571,978,177.02/1,768,143.60 - Step 6: Final answer
x = 1,133,150.03
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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.