Finding the Fourth Proportional to 1,415,226.40, 2,119,729.20 and 853,280.80
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Solution
The fourth proportional to 1,415,226.40, 2,119,729.20 and 853,280.80 is: 1,278,045.85
Step by Step Solution
- Step 1: Write the proportion equation
1,415,226.40 : 2,119,729.20 = 853,280.80 : x - Step 2: Convert to fraction form
1,415,226.40/2,119,729.20 = 853,280.80/x - Step 3: Cross multiply
1,415,226.40x = 2,119,729.20 × 853,280.80 - Step 4: Simplify right side
1,415,226.40x = 1,808,724,227,559.36 - Step 5: Solve for x
x = 1,808,724,227,559.36/1,415,226.40 - Step 6: Final answer
x = 1,278,045.85
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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.