Finding the Fourth Proportional to 745,491.82, 1,028,751.55 and 405,952.62
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Solution
The fourth proportional to 745,491.82, 1,028,751.55 and 405,952.62 is: 560,199.82
Step by Step Solution
- Step 1: Write the proportion equation
745,491.82 : 1,028,751.55 = 405,952.62 : x - Step 2: Convert to fraction form
745,491.82/1,028,751.55 = 405,952.62/x - Step 3: Cross multiply
745,491.82x = 1,028,751.55 × 405,952.62 - Step 4: Simplify right side
745,491.82x = 417,624,387,051.56 - Step 5: Solve for x
x = 417,624,387,051.56/745,491.82 - Step 6: Final answer
x = 560,199.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.