Finding the Fourth Proportional to 1,330,235.30, 1,993,164.15 and 768,289.70
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Solution
The fourth proportional to 1,330,235.30, 1,993,164.15 and 768,289.70 is: 1,151,170.39
Step by Step Solution
- Step 1: Write the proportion equation
1,330,235.30 : 1,993,164.15 = 768,289.70 : x - Step 2: Convert to fraction form
1,330,235.30/1,993,164.15 = 768,289.70/x - Step 3: Cross multiply
1,330,235.30x = 1,993,164.15 × 768,289.70 - Step 4: Simplify right side
1,330,235.30x = 1,531,327,486,854.26 - Step 5: Solve for x
x = 1,531,327,486,854.26/1,330,235.30 - Step 6: Final answer
x = 1,151,170.39
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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.