Finding the Fourth Proportional to 745,297.92, 1,028,476.80 and 405,765.12
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Solution
The fourth proportional to 745,297.92, 1,028,476.80 and 405,765.12 is: 559,937.18
Step by Step Solution
- Step 1: Write the proportion equation
745,297.92 : 1,028,476.80 = 405,765.12 : x - Step 2: Convert to fraction form
745,297.92/1,028,476.80 = 405,765.12/x - Step 3: Cross multiply
745,297.92x = 1,028,476.80 × 405,765.12 - Step 4: Simplify right side
745,297.92x = 417,320,012,169.22 - Step 5: Solve for x
x = 417,320,012,169.22/745,297.92 - Step 6: Final answer
x = 559,937.18
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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.