Finding the Fourth Proportional to 1,578,412.80, 2,365,675.20 and 1,072,972.80
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Solution
The fourth proportional to 1,578,412.80, 2,365,675.20 and 1,072,972.80 is: 1,608,137.71
Step by Step Solution
- Step 1: Write the proportion equation
1,578,412.80 : 2,365,675.20 = 1,072,972.80 : x - Step 2: Convert to fraction form
1,578,412.80/2,365,675.20 = 1,072,972.80/x - Step 3: Cross multiply
1,578,412.80x = 2,365,675.20 × 1,072,972.80 - Step 4: Simplify right side
1,578,412.80x = 2,538,305,143,234.56 - Step 5: Solve for x
x = 2,538,305,143,234.56/1,578,412.80 - Step 6: Final answer
x = 1,608,137.71
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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.