Finding the Fourth Proportional to 745,418.64, 1,028,673.36 and 405,886.08
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Solution
The fourth proportional to 745,418.64, 1,028,673.36 and 405,886.08 is: 560,120.41
Step by Step Solution
- Step 1: Write the proportion equation
745,418.64 : 1,028,673.36 = 405,886.08 : x - Step 2: Convert to fraction form
745,418.64/1,028,673.36 = 405,886.08/x - Step 3: Cross multiply
745,418.64x = 1,028,673.36 × 405,886.08 - Step 4: Simplify right side
745,418.64x = 417,524,197,690.83 - Step 5: Solve for x
x = 417,524,197,690.83/745,418.64 - Step 6: Final answer
x = 560,120.41
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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.