Finding the Fourth Proportional to 1,389,254.70, 2,082,715.65 and 724,406.70
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Solution
The fourth proportional to 1,389,254.70, 2,082,715.65 and 724,406.70 is: 1,086,001.85
Step by Step Solution
- Step 1: Write the proportion equation
1,389,254.70 : 2,082,715.65 = 724,406.70 : x - Step 2: Convert to fraction form
1,389,254.70/2,082,715.65 = 724,406.70/x - Step 3: Cross multiply
1,389,254.70x = 2,082,715.65 × 724,406.70 - Step 4: Simplify right side
1,389,254.70x = 1,508,733,171,054.85 - Step 5: Solve for x
x = 1,508,733,171,054.85/1,389,254.70 - Step 6: Final answer
x = 1,086,001.85
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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.