Finding the Fourth Proportional to 762,643.96, 1,052,448.99 and 423,112.21
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Solution
The fourth proportional to 762,643.96, 1,052,448.99 and 423,112.21 is: 583,895.03
Step by Step Solution
- Step 1: Write the proportion equation
762,643.96 : 1,052,448.99 = 423,112.21 : x - Step 2: Convert to fraction form
762,643.96/1,052,448.99 = 423,112.21/x - Step 3: Cross multiply
762,643.96x = 1,052,448.99 × 423,112.21 - Step 4: Simplify right side
762,643.96x = 445,304,018,071.17 - Step 5: Solve for x
x = 445,304,018,071.17/762,643.96 - Step 6: Final answer
x = 583,895.03
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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.