Finding the Fourth Proportional to 1,538,208.09, 2,306,075.70 and 1,057,010.11
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Solution
The fourth proportional to 1,538,208.09, 2,306,075.70 and 1,057,010.11 is: 1,584,665.52
Step by Step Solution
- Step 1: Write the proportion equation
1,538,208.09 : 2,306,075.70 = 1,057,010.11 : x - Step 2: Convert to fraction form
1,538,208.09/2,306,075.70 = 1,057,010.11/x - Step 3: Cross multiply
1,538,208.09x = 2,306,075.70 × 1,057,010.11 - Step 4: Simplify right side
1,538,208.09x = 2,437,545,317,794.95 - Step 5: Solve for x
x = 2,437,545,317,794.95/1,538,208.09 - Step 6: Final answer
x = 1,584,665.52
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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.