Finding the Fourth Proportional to 1,207,412.70, 1,811,119.05 and 1,188,750.30
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Solution
The fourth proportional to 1,207,412.70, 1,811,119.05 and 1,188,750.30 is: 1,783,125.45
Step by Step Solution
- Step 1: Write the proportion equation
1,207,412.70 : 1,811,119.05 = 1,188,750.30 : x - Step 2: Convert to fraction form
1,207,412.70/1,811,119.05 = 1,188,750.30/x - Step 3: Cross multiply
1,207,412.70x = 1,811,119.05 × 1,188,750.30 - Step 4: Simplify right side
1,207,412.70x = 2,152,968,314,023.22 - Step 5: Solve for x
x = 2,152,968,314,023.22/1,207,412.70 - Step 6: Final answer
x = 1,783,125.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.