Finding the Fourth Proportional to 745,051.56, 1,028,173.68 and 405,519
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Solution
The fourth proportional to 745,051.56, 1,028,173.68 and 405,519 is: 559,617.60
Step by Step Solution
- Step 1: Write the proportion equation
745,051.56 : 1,028,173.68 = 405,519 : x - Step 2: Convert to fraction form
745,051.56/1,028,173.68 = 405,519/x - Step 3: Cross multiply
745,051.56x = 1,028,173.68 × 405,519 - Step 4: Simplify right side
745,051.56x = 416,943,962,539.92 - Step 5: Solve for x
x = 416,943,962,539.92/745,051.56 - Step 6: Final answer
x = 559,617.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.