Finding the Fourth Proportional to 745,268.86, 1,028,489.52 and 405,755.74
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Solution
The fourth proportional to 745,268.86, 1,028,489.52 and 405,755.74 is: 559,952.99
Step by Step Solution
- Step 1: Write the proportion equation
745,268.86 : 1,028,489.52 = 405,755.74 : x - Step 2: Convert to fraction form
745,268.86/1,028,489.52 = 405,755.74/x - Step 3: Cross multiply
745,268.86x = 1,028,489.52 × 405,755.74 - Step 4: Simplify right side
745,268.86x = 417,315,526,269.85 - Step 5: Solve for x
x = 417,315,526,269.85/745,268.86 - Step 6: Final answer
x = 559,952.99
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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.