Finding the Fourth Proportional to 790,619.76, 1,186,151.08 and 317,637.28
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Solution
The fourth proportional to 790,619.76, 1,186,151.08 and 317,637.28 is: 476,544.89
Step by Step Solution
- Step 1: Write the proportion equation
790,619.76 : 1,186,151.08 = 317,637.28 : x - Step 2: Convert to fraction form
790,619.76/1,186,151.08 = 317,637.28/x - Step 3: Cross multiply
790,619.76x = 1,186,151.08 × 317,637.28 - Step 4: Simplify right side
790,619.76x = 376,765,802,720.26 - Step 5: Solve for x
x = 376,765,802,720.26/790,619.76 - Step 6: Final answer
x = 476,544.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.